Today was a profit booking session that happened. 15800 there was huge call option open interest which probably have gave pressure for a small down move. Main point is 15600 did not break on closing basis even on a one hour candle and still its fine on chart perspective. Keep 15600 as stop loss preferably on a close basis in one hour chart and 15500 as final stop loss. Below 15500 could be a worry sign.
Trade as per the risk appetite, Spreads are much better to trade as risk is defined
Disclaimer - This post is for educational purpose only. Please consult your financial advisor before taking any position.