Power Grid Corporation

I have been holding power grid for a long time and have earned good money from it. I want to know whether i should continue holding it or should i exit

 

Dear Manna pls see the thread Prospects of NHPC where I commented this a Bonsai tree try to exit on rises and find any good stocks many of the borders here in this platform have good ideas and knowledge and follow them. this is my advise

 

What do you mean by bonsai ? (Sorry for my lack of knowledge, i am new to investing)

 

Bonsai tree

 

Ok thnx