The Exchange operates the following sub-segments in the Equities segment:
1. Rolling Settlement
2. Limited Physical Market
3. Settlement Cycle
1. Rolling Settlement:
In a rolling settlement, each trading day is considered as a trading period and trades executed during the day are settled based on the net obligations for the day. At NSE, trades in rolling settlement are settled on a T+2 basis i.e. on the 2nd working day. For arriving at the settlement day all intervening holidays, which include bank holidays, NSE holidays, Saturdays and Sundays are excluded. Typically trades taking place on Monday are settled on Wednesday, Tuesday's trades settled on Thursday at trade4target.
http://trade4targettrade4targettrade4target.blogspot.in/2014/11/trade4target_5.html