Dear sir, I have qualified 12th in 2017. Can i attempt jee main of April session of 2019 if I have already taken two step?

You have qualified 12 the in 2017 , means you have already taken 2 years drop.

But yes.. you can apply for Jee mains and can sit for the exam. NITs do accept 2 years droppers.

But you won't be eligible to give Jee advance exam. For advance, maximum of 1 year gap is allowed.

Nevertheless..NITs are also very good.. Many good NITs are even better than IIts..

So work hard.. you'll surely get success.

All the best.

Hello Aspirant,
Yes 100% you can give jee in 2019 as jee gives 3 attempts to every individual so you can comfortably give the exam work hard and give you best this time because its now or never.Lots of wishes to you.
Goodluck!