Details about the contracts :
Trading hours will be Monday-Friday, 3:30 p.m. – 3:15 p.m. the next day (except Friday, which closes at 3:15 p.m.) with a trading halt.
Sundays-Thursdays from 9:30-10:30 p.m. CDT (8:30 p.m.-9:30 p.m. CST) coinciding with the hour prior to the NSE opening.

This is an interesting listing, thereby providing the Global Institutions to gain exposure to the Indian markets and also arbitrage opportunities from short-term price differences versus the Singapore SGX Nifty futures.
And will this cause any changes in NSE's Trading hours or Nifty futures trading in NSE ? One has to wait and see !