When Companies Join Forces: Why Mergers and Acquisitions Matter for Investment Banking

Author : Raman Pandit | Published On : 26 Oct 2026

When one company acquires another, the announcement often focuses on the deal value, the companies involved and the future business opportunities. But behind every acquisition is a detailed financial process that determines whether the transaction makes sense.

Is the target company worth the asking price? Does the buyer have enough capital to complete the acquisition? Will combining the two businesses improve profitability? Are there financial or operational risks that could affect the deal after completion?

These are some of the questions investment banking professionals help businesses evaluate during mergers and acquisitions (M&A).

India's M&A market has continued to attract attention in 2026, with companies pursuing acquisitions to expand internationally, strengthen their capabilities and enter new markets. At the same time, buyers have become more selective about the transactions they pursue, making financial analysis and valuation particularly important.

For students researching an investment banking course in Chennai, understanding how acquisitions work offers an opportunity to explore an important area of modern corporate finance.

Why Are Companies Buying Other Businesses Instead of Building Everything Themselves?

Imagine a Chennai-based automotive company that wants to expand its electric vehicle operations. It could spend several years developing new technology, hiring specialists and building the necessary infrastructure. Alternatively, it could acquire a company that already has the technology, experienced employees and established supplier relationships.

An acquisition could help the buyer accelerate its plans, but it would also require a substantial financial commitment.

The buyer would need to examine the target company's financial performance, assess its technology and operations, understand its existing liabilities and estimate the benefits of combining the businesses.

This is one reason companies pursue acquisitions. They may want to enter a new market, acquire intellectual property, expand their customer base, improve operational efficiency or gain access to capabilities that would take years to develop internally.

However, buying another business does not automatically create value. A transaction can become expensive, integration can prove difficult, and the expected benefits may not materialise.

Investment banking teams help businesses evaluate the financial aspects of these decisions, structure transactions and support the process of raising or deploying capital. The exact responsibilities depend on the transaction and the professional's role.

India's M&A Market in 2026: Why Deal Analysis Matters

India's M&A market has shown an interesting pattern in 2026. According to Boston Consulting Group's September 2026 analysis, M&A deal volumes declined by approximately 20% during the first seven months of the year compared with the same period in 2025. However, the total value of transactions declined by only around 2%.

This suggests that dealmakers were concentrating on fewer, potentially larger transactions rather than pursuing acquisitions indiscriminately. Valuation differences between buyers and sellers, economic uncertainty and expectations about future business performance influenced transaction decisions.

Cross-border acquisitions have also remained an important theme, with Indian companies looking overseas to strengthen supply chains, expand their operations and acquire specialised capabilities.

For investment banking professionals, these developments highlight an important principle: the number of deals alone does not explain the market. Analysts must also understand transaction size, strategic objectives, financing requirements and the financial risks associated with each acquisition.

This makes M&A a useful subject for anyone interested in corporate finance, company valuation and investment analysis.

Chennai's Industrial Ecosystem and the Business of Acquisitions

Chennai has a strong presence in automotive manufacturing, engineering, technology and business services. These industries provide useful examples of why companies may consider acquisitions, strategic partnerships and changes in ownership.

A recent development illustrates this clearly.

In September 2026, Stellantis India announced that it had acquired the remaining stake held by its joint-venture partner in Stellantis Automobiles India, giving it full ownership of the company's Indian manufacturing operations in Thiruvallur, Tamil Nadu.

The company said the move supported its long-term plans for India and its manufacturing operations.

Although this transaction involved the acquisition of a remaining ownership stake rather than a conventional purchase of an entirely separate business, it demonstrates how ownership decisions can influence a company's operational control and future strategy.

For financial professionals, transactions of this nature raise several questions. What is the value of the stake being acquired? How does the transaction affect ownership and control? What financial commitments are involved? How might the change support future business plans?

These questions show how financial analysis connects corporate strategy with transaction decisions.

What Happens Before an Acquisition Is Completed?

An acquisition involves much more than agreeing on a purchase price. Buyers need to understand the target business, evaluate its financial position and determine whether the proposed transaction is commercially reasonable.

Several stages are particularly important.

1. Identifying the Right Company

The first step is identifying a business that fits the buyer's strategic objectives.

A company seeking international expansion may look for a business with established overseas customers. A technology company may want to acquire specialised software or intellectual property. A manufacturer may look for a supplier that can improve production efficiency.

Investment banking professionals may support the identification and evaluation of potential targets, depending on the mandate and their responsibilities.

The objective is to establish whether the acquisition has a clear business rationale rather than pursuing a transaction simply because an opportunity exists.

2. Analysing Financial Statements

Once a potential target has been identified, its financial performance needs to be examined.

Analysts review revenue, operating expenses, profitability, assets, liabilities and cash flow to understand the company's financial position. They may also examine historical growth, customer concentration, borrowing obligations and the consistency of reported earnings.

For example, a business may report rising revenue but experience declining operating margins. Another company may generate strong profits but have limited cash available because customers take a long time to pay.

These details can influence the buyer's assessment of the business and the risks associated with acquiring it.

Financial statement analysis provides the foundation for understanding what the buyer may be purchasing.

3. Conducting Due Diligence

Due diligence is the process of examining a business before completing a transaction.

Financial due diligence may involve reviewing reported earnings, debt, working capital, cash flow and potential financial obligations. Legal, tax, commercial and operational reviews may be conducted by the relevant specialists.

Suppose an acquiring company discovers that the target has significant customer concentration, meaning a large proportion of its revenue comes from only one or two customers.

This could create a risk if one of those customers decides not to renew its contract.

Similarly, undisclosed liabilities or unusually high working capital requirements could change the financial attractiveness of the deal.

Due diligence helps the buyer understand these risks before making a final decision. The findings may affect the purchase price, transaction structure or decision to proceed.

4. Determining the Company's Value

Valuation is one of the most important aspects of an acquisition.

The buyer needs to estimate what the target business is worth and determine whether the proposed price is reasonable.

One method is discounted cash flow analysis, which estimates value using projected future cash flows. Another is comparable company analysis, which examines how similar businesses are valued by the market.

Analysts may also examine comparable transactions to understand how buyers have valued similar businesses in previous deals.

Each method has limitations. Future cash flows depend on assumptions about revenue growth, costs and investment requirements. Market multiples can also vary depending on industry conditions, profitability and investor expectations.

The purpose of valuation is not to produce a number without context. It is to develop a reasoned estimate supported by financial information and clearly explained assumptions.

Why Financial Modelling Is Essential in M&A

Financial modelling helps analysts evaluate how an acquisition may affect the buyer and the target company.

A model may incorporate historical financial statements, future revenue projections, operating expenses, financing costs and expected transaction benefits. Depending on the deal, analysts may also evaluate the combined financial performance of both businesses.

Consider a fictional company planning to acquire a smaller competitor.

The buyer expects the transaction to increase revenue and reduce certain operating costs by combining overlapping functions. However, the acquisition will require an upfront payment and may involve integration expenses, additional borrowing and changes to the combined company's operations.

A financial model can help estimate the expected costs and benefits under different scenarios.

What happens if revenue growth is slower than expected? What if integration costs exceed the initial budget? How would borrowing costs affect the transaction's financial outcome?

By testing these assumptions, analysts can identify which factors have the greatest impact on the deal.

This is why learners exploring an investment banking course in Chennai should look for opportunities to understand financial modelling in the context of real business decisions.

The objective is to understand how financial information supports an acquisition, not simply how to perform calculations in a spreadsheet.

How Do Investment Banks Help Companies Complete Deals?

Investment banks may support companies at different stages of an M&A transaction.

For a business looking to acquire another company, an investment banking team may help identify potential targets, analyse financial information, assess valuation and coordinate transaction discussions.

For a company looking to sell itself or a business division, advisers may help prepare financial information, approach potential buyers and evaluate offers.

Investment banks may also advise on transaction structure and financing arrangements. Some transactions involve cash payments, while others may use shares, debt financing or a combination of funding sources.

The work requires coordination among financial analysts, senior bankers, lawyers, accountants and other specialists.

Analysts may spend considerable time preparing valuation models, reviewing company information, updating financial presentations and checking calculations. Their work helps senior professionals and clients understand the financial implications of the transaction.

The responsibilities vary by institution and role, but strong financial analysis is a common foundation.

What Should You Learn Before Pursuing an M&A Career?

Students interested in mergers and acquisitions need to understand the financial concepts used to evaluate companies and transactions.

Financial statement analysis helps learners interpret a company's revenue, profitability, debt and cash flow.

Financial modelling helps translate assumptions about future performance into financial projections.

Company valuation introduces methods used to estimate business value and compare acquisition opportunities.

Corporate finance explains how businesses make investment decisions, raise capital and evaluate financing alternatives.

M&A fundamentals help learners understand transaction stages, due diligence, deal structures and the financial considerations involved in acquisitions.

Communication also matters. Analysts must be able to explain financial findings clearly and describe why a particular assumption or conclusion is reasonable.

Practical case studies can bring these concepts together. For example, a learner could review the financial statements of two companies, estimate their values and assess whether a hypothetical acquisition could create value for the buyer.

Such exercises encourage learners to connect financial calculations with commercial reasoning.

Choosing an Investment Banking Course in Chennai

Choosing a course requires more than comparing the duration or title of different programmes. Learners should examine the curriculum, practical training and relevance to their career objectives.

Start by checking whether the programme covers accounting fundamentals, financial statement analysis, corporate finance, financial modelling and valuation. These subjects provide a foundation for understanding M&A and other investment banking activities.

Next, examine the practical component. Ask whether students build financial models, work through company valuation exercises and analyse transaction-related case studies.

It is also worth reviewing how the course explains the relationship between financial analysis and business decisions. Understanding why a model is used and how its results influence a transaction is more valuable than memorising formulas without context.

Career support should be evaluated separately. Prospective students can ask about interview preparation, CV guidance, mentoring and placement assistance, including the scope and conditions of these services.

Boston Institute of Analytics offers an Investment Banking and Financial Analytics programme covering areas related to financial analysis and valuation. Students can explore the Investment Banking and Financial Analytics programme to review the curriculum and determine whether it aligns with their learning goals.

Career Paths Related to Mergers and Acquisitions

Learning investment banking fundamentals can help students explore several finance-related career paths, depending on their qualifications, experience and practical abilities.

M&A analyst roles may involve researching companies, preparing valuation models and supporting transaction execution. Valuation analysts focus on estimating the value of businesses or financial assets. Transaction advisory professionals may support financial due diligence and help clients evaluate transactions.

Other related paths include corporate finance, equity research and financial analysis. Each role has different responsibilities, and some positions require additional qualifications or relevant experience.

Students should research the entry requirements for their preferred roles and build their knowledge accordingly.

A strong understanding of financial statements, modelling and valuation can help candidates prepare for technical interviews. Being able to explain how a company's debt affects its valuation or why an acquisition's expected benefits may not justify its price can demonstrate a more practical understanding of finance.

Conclusion

Mergers and acquisitions are strategic business decisions supported by detailed financial analysis. Before a deal is completed, companies need to understand the target's financial position, assess its value, investigate potential risks and evaluate whether the transaction supports their long-term objectives.

For learners researching an investment banking course in Chennai, M&A provides a practical way to understand how financial modelling, valuation and corporate finance work together.

The most useful preparation begins with strong financial fundamentals and opportunities to apply them to business situations. Understanding the reasoning behind an acquisition can help aspiring finance professionals develop a clearer picture of how investment banking supports major corporate decisions.