It is necessary to upload thumb impression in neet 2019?

Nta has laid out that you must be uploading your photograph, thumb impression and signature for the validation of your Neet UG examination 2019 validation and for those candidates who have not been able to abide by the rules in which you are supposed to do this uploading have got an extension window period of correcting your mistakes between 14 January 31st January with notifications about the corrections been already mailed or message to you on your contacts given during registration
on failing to make the corrections by this aforesaid window period you might not be issued your admit card for the NEET UG 2019 examination supposed to be held on 5th may which will detrimental affect your ability to sit for the examination and clear it on this year so kindly take it on a serious note and upload the required documents by the stipulated time period in the manner prescribed by the NTA