This year, 2019 India's economic moderate growth has pushed several sectors upward and downward too.
To invest in stocks, I personally analyse sectors through its past history.

There are several questions that you must consider before choosing a sector:
How will India's growing economy affect the specific sector in the next 5 years?
What is the government's upcoming policy overspending on the specific sector?
Note, any stock purchase has to be in view of your goals and your long term risk capacity.

I am concluding my answer with a link below. This is a InvestorQ link of a similar query that answers about the sectors in India: