But I have heard that droppers can apply for pmsss ...in order to be sure I just put my question.
As per the eligibility Pursuing first professional degree programme in the field of Engineering, Medicine, Dental, Veterinary, BBA, BCA, B. Pharma, B.SC (Nursing, Agriculture, etc.), MBA and MCA etc. can apply for this scholership. You can check the further information with the given below link.
https://www.cisf.gov.in/wp-content/uploads/2017/11/GUIDELINES_ONLINES_PMSS_2017_18.pdf
Good Luck!