Hi aspirant,

NTA has released NEET 2021 official answer key at neet.nta.nic.in. A NEET answer key by NTA download link has been provided on this page. NEET UG answer key 2021 mentions the answers to the questions asked in the exam.  You can get the solutions for the M series of Neet question paper at https://medicine.careers360.com/articles/neet-2021-answer-key-code-m1-m2-m3-m4-m5-m6

For official answer key released by national testing agency, visit https://testservices.nic.in/NEET2021/Root/home.aspx?enc=Ei4cajBkK1gZSfgr53ImFcFR+natXIEjJ1rCf6DMgOrJ4xlKNzYGOuB5dxhm2dDv

Hope it helps!!