Relpet

I have 170 shares of RELPET @144.71
What is the best price to sell it?

I guess you are talking about RPL if yes then it has strong resistance levels around 180-185, and upside upto 200-210.

So, you are earning 30% profits right now.

Book profits as soon as it reaches above 200 levels and make a stop loss around 180 and exit before its breakes that level.