We all know that Mumbai is the economic capital of India and same is proved by virtue of NSE having its Corporate Office in Mumbai and address is given below.
NSE - Corporate Office
National Stock Exchange of India Ltd.
Plot no. C/1, G Block,
Mumbai - 400 051.
Tel No: +91 -22 – 26598431
E-mail : fig@nse(dot)co(dot)in
One can use this address to contact them if one is an overseas investor.