I am in 10th i want to become scientist which exam should i given in 11th and 12th

Firstly prepare for your 10th board exams and pass with good marks then in 11th choose science stream and start preparing for jee mains and advanced qith a great effort and after that pass your 12th board exams with a minimum of 75%.After this you can give jee mains and pass the cutoff marks to give jee advanced. Try to get admission in IISC by scoring very good marks in jee advanced.

or

You can do bsc+ msc course after 12th to become a scientist.

This is the process.

Dear Raju

I would suggest you to take basic sciences (Physics,Chemistry, Maths or Biology) in 12th grade as per your liking. Study your subjects carefully and lay emphasis on understanding the basic concepts rather than memorising formulae and implementing them in problems! One crucial advice: ask as many questions as possible and dont worry even if they seem silly! There are many institutes/colleges which offer undergraduate courses(BSc./Integrated MSc.) in basic sciences such as IISERs, UM-DAE CBS Mumbai, NISER Bhubaneshwar, IIST Trivandrum, IIRBS Kottayam, IISc. Bangalore and so on.

All the best.

At first pass your 10th and take science stream in 11th

JEE MAINS THEN JEE ADVANCE THEN APPLY FOR IISC BY USING GOOD JEE ADVANCE MARKS