Bank index losing 5 days in ROW at that time and BUYING at 3990 (intraday) was not a
bad idea. But it backfired.Unfortunately it was FEB series and I had to close
down my position.If it were MARCH position ,then I will hold.
my experience with banknifty is very short (and still not sweet). Seems to be slightly better than nifty in terms of gaps etc.
There are more experiences ppl who hv been trading banknifty since long. Their opinion may be sought for.