The Company's shares fall under category B1 of scrip in BSE and are listed on the following stock exchanges.

In India:

Bombay Stock Exchange Limited (BSE)
Phiroze Jeejeebhoy Towers
Dalal Street, Fort
Mumbai - 400001
Tel. No: 91-22-22721233 / 1234
Fax No: 91-22-22723719
E-mail: listing@bseindia.com
Website: www.bseindia.com

National Stock Exchange of India Limited (NSE)
Exchange Plaza
Plot No.C/1, G Block
Bandra Kurla Complex, Bandra (E)
Mumbai - 400 051
Tel. No: 91-22-26598235 / 36
Fax No: 91-22-26598237 / 38
E-mail: cmlist@nse.co.in
Website: www.nseindia.com

Outside India:

The Company's ADSs are listed on:

The New York Stock Exchange (NYSE)
11 Wall Street, New York
NY 10005
Tel No: 212 6563000
Website: www.nyse.com

Stock code:
BSE: 532517
NSE: PATNI
ISIN nos. in NSDL and CDSL: INE660F01012
NYSE (ADR): PTI