An investment bank is a financial institution that assists individuals, corporations and governments in raising capital by underwriting and/or acting as the client's agent in the issuance of securities.

An investment bank may also assist companies involved in mergers and acquisitions, and provide ancillary services such as market making, trading of derivatives, fixed income instruments, foreign exchange, commodities, and equity securities.

Some of the well known Investment Banks in India are as follows
JPMorgan
Enam
Yes
Axis
Spark
Veda
E & Y
O3
Bank of America
p2p
cogence
ripplewave
equirus
Ambit
Stand chart
SBI Cap
JM Financials
PWC
Morgan Stanley
Avendus
Barclays
ICICI Sec
Citi
Credit Suisse
Deustche Bank
HSBC