According to MBBS prospectus 2017 of JIPMER:

One (1) recent colour passport size photograph with light background is required. Please Note that Black & White / Polaroid photographs are not acceptable and the photographs must be taken on or after 31st january of this year.

Also , The photograph must be taken with a placard while the placard is being held by you indicating your name and date of taking photograph and writing of name and date on the photograph after taking it will lead to rejection of the application. Please note that the name and date on the photograph should be legible.

You must upload photograph and signature to correct specified fields. Please Do not make any mistake in uploading signature and photograph. You must have in softcopy/digital of PASSPORT SIZE PHOTOGRAPH (30mm width x 45mm Height) and save it as “Candidate Photograph.jpg” provided by photographer. Keep size of photograph minimum size 20KB, as the maximum size limit is 200KB. You need to affix your SIGNATURE in an area of 80mm Width X 35mm Height on paper with a black ball point pen. Scan that paper. Cut Signature is of 80mm Width X 35mm Height and save it as “Candidate Signature.jpg”. Keep size of Signature minimum size 20KB, as the maximum size limit is 200 KB 

Hope this helped. All the best for your exam. :)