Suppose you bought a share named XYZ at Rs 100 each.
20 days later you see its price Rs 130/share. You think about it and finally decide to sell. That is called Profit Booking.
You may SIP to recover faster and better. Or else reaching your price is gonna take some long time.
Polaris is around its Res zone 185-190. Avoid buying now, if you have it then book profits.
Repost your query on Rolta, as only one query is answered per post.
Closing below 168 is not going to be good for the stock. 168 major support now. Looks weak