Hello Srishti,
Yes, for sure the marks of H.S.C .and 12th are considered for MBBS Admissions , as per the regulatory of Medical Council of INDIA , NBE says that the students who belong to the categories of UR - 50% , OBC/SC/ ST - 40% and PWD - 45% , this is the basic requirement which is kept under consideration for M.B.B.S admissions , Also there is a Age limit which is the another factor for the Aspiring M.B.B.S students , the age limit announced by the NBE is 17 Years. A student should be minimum of age 17 to apply for the M.B.B.S admissions , below age students cannot apply.

I hope this information helps you.

All the best !!

no its does not require but 50percent marks need to write a neet exam