Losing trade.

Looked at the OI / PCR / Advance Decline ratio.
Marked levels using Pivot and took entry when price moved past Daily Pivot.
Rapidly the Advance Decline changed from 3.34 to 1.6 and SL was hit.
Entry @ 17676.20
SL Hit @ 17597.5
Lesson learnt - On euphoric days, going long after price has reached nearly 50% retracement might not be a good idea.
Will want to back test this.
All About Indices - chart - 25593013