Hii Vinay Kumar,

After the completion of 10th, Complete the intermediate course in the stream of MPC i,e Maths, physics and chemistry.Get good grades in the Intermediate and good knowledge on the intermediate physics topics.After that get a Bachelor's Degree from a good reputated college wirh focus on Astronomy or physics.Then get a master's degree in Science from a good reputated college.so that you can do PhD in a good university.Then complete your PhD in Astronomy.After that you have to take some qualifying exams and you can become a Astronomer after clearing those exams.

Thank you