Hello Aspirant, there are multiple entrance exams you can take to go for M.sc. They are-

• All India Institute of Medical Sciences ( AIIMS PG 2020 ) exam
• Indian Institute of Technology – Joint Admission Test ( IIT JAM 2020 )
• Indira Gandhi National Open University Entrance Exam ( IGNOU 2020  )
• University of Pune Entrance Exam
• Guru Gobind Singh Indraprastha University Entrance Exam ( IPU CET 2020 ( )
• Indian School of Mines Entrance Exam
• Delhi University Entrance Test ( DUET 2020  )
• Indian Institute of Space Science and Technology ( IIST 2020)

Please check the official websites for exact date of the exams.

Hope this helps.

Thank you.