Sourav,
After a run up, there's bound to be a correction. Have you considered the Risk/Reward ratio of buying now into the rally? Have you worked out your entry / exit and a stop loss price?
Big guys are waiting for 'investors' such as you to sell to at high price and buy back from you triggering stop losses especially if you are a late buyer, or cannot invest for a long term period to see thru any period of retracement.
My two bits worth : You Learn to be patient, and enter when the price is right.
Having said all this, there's a caevat. The stocks could still rally further tomorrow especially if RBI announces rate cuts tomorrow.
All the best.