Would you please suggest me which field i should opt ?

Engineering would be a good option for you and if you can get into a reputed college. Unfortunately youramrks are on the lower side. Alternatively you can study science in college, do B.Sc. , M.Sc. adn then doctorate to get into the research field. You can also opt for a career in the education line

You can go for career assessment test facility being offered by universities like LPU, Amity etc on their websites. It is a free of cost facility. This facility helps you choose a career according to your passion and aptitude. Good luck.