Hello,
For this you need to have a proper planning and practice of questions.You should follow a proper timetable to prepare for jee mains and advanced.Go through Ncert books first to get basic concepts then start solving HC VERMA,RD SHARMA,OP TONDON,RC MUKHERJEE,etc books.Always clear your doubts from your teachers and be motivated.Always focus on self study and solve previous year's questions regularly.
Good luck

Dear Bhanu

Inorder to put your focus on 1st rank in Mains and Advance rather than you tried to concentrate to bring yourself under 500 rank in both Jee mains and Advance and coming under 500 rank requires proper planning , hardwork, patience, continuous improvement in yourself makes you brush yourself.

All the best

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