Hello Anand Kumar!

You can download the full and detailed syllabus for jee advanced given in the official website of jee advanced through this link

https://jeeadv.ac.in/examination/syllabus.html

You can download the full and detailed syllabus for jee main given in the official website of jee main through this link:

https://jeemain.nic.in › FileHandlerPDF

Hope it answer your concerns.

Best of luck for your preparation.