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Investment banks have multilateral Functions to perform. Some of the most important functions of investment banking can be jot down as follows.
Investment banking help public and private corporations in issuing securities in the primary market, guarantee by underwriting or best efforts selling and foreign exchange management. Other services include acting as intermediaries in trading for clients.
Investment banking provides financial advice to investors and serves them by assisting in purchasing securities, managing financial assets and trading securities.

Investment banking differs from commercial banking in the sense that they don’t accept deposits and grant retail loans. however the dividing line between the two fraternal twins become flimsy with loans and securities becoming almost substitutable ways of raising funds.
Small firms providing services of investment banking are called boutiques. These mainly specialize in bond trading, advising for mergers and advising for mergers and acquisitions, providing technical analysis or program trading.
The growth in the Indian banking industry has been more qualitative than quantitative and it is expected to remain the same in the coming years. Based on the projections made in the “Indian vision 2020”preparedby the planning commission and the draft 10th plan, the report forecasts that the pace of expansion in the balance-sheets of banks is likely to decelerate. The total assets of all scheduled commercial bank by end-march 2010 is estimated at RS40,90,000crores.that will comprise about 65 percent of GDP at current market prices as compared to 67 percent in 2002-2003.bank assets are expected to grow at an annual composite rate of 13.4percent during the rest of the decade as against the growth rate of 16.7percent that existed between 1994-1995 and2002-2003.it is expected that there will be large additions to the capital base and reserves on the liability side. The Indian banking industry can be categorized into non-scheduled banks and scheduled banks. Scheduled banks constitute of commercial banks and cooperative banks. There are about 67,000 branches of scheduled banks spread across India .as for as the present scenario is concerned the banking industry in India is going through a transitional phase.
The public sectors banks(PSBs),which are the base of the banking sector in India account for more than 78 percent of the total banking industry assets. Unfortunately they are burdened with excessive non performing assets (NPAs), massive manpower and lack of modern technology. On the other hand the private sector banks are making tremendous progress. They are leaders in internet banking, Mobil banking, phone banking, ATMs. As far as foreign banks are concerned they are likely to succeed in the Indian banking industry.
In the Indian banking industry some of the private sector banks operating are IDBI bank, ING Vyasa bank, SBI commercial and international bank Ltd, bank of Rajasthan Ltd. and banks from the public sector include Punjab national bank, Vijaya bank, UCO bank, oriental bank, Allah bad bank among others. ANZ Grind lays bank