Rishabh, MHRD did announce that JEE Mains 2021 will be conducted with reduced and revised syllabus. But the topics that might be deleted or retained have not been mentioned. So we do not know much about JEE Mains. But because Class 12 syllabus has been officially released by CBSE at its official website at: http://cbseacademic.nic.in/revisedcurriculum_2021.html, your go to books should be NCERT as of now. Once MHRD releases new reduced and revised syllabus, then you can check the topics that have been retained and have a plan. But for now, get the basics, formulae correct. Stick to NCERT and practise previous years Question papers.

• Prepare a timetable which has daily schedule for preparation of each and every subject
• Prepare more then 8 hours in a day as you have 1 year for preparation
• Do make a note of important points and keep notes shorter
• Do not just buttify points make a clear understanding
• From the month of December, Do prepare for more then 10 hours
• From the month of February ending,  march and april make a time table for more then 12 hours
• last but not least, remember the more you concentrate the more you will remember

• NIT Andhra Pradesh - National Institute of Technology-B.Tech. in Biotechnology
• Jamia Millia Islamia - JMI-B.Tech. in Electronics and Communication Engineering
• NIT Srinagar - National Institute of Technology-B.Tech. in Mechanical Engineering
• J. K. Institute of Applied Physics and Technology, Allahabad University-B.Tech. in Electronics and Communication Engineering
• NIT Mizoram - National Institute of Technology-B.Tech. in Mechanical Engineering