Hi there, 

Thank you for choosing our platform to clear your queries.

Usually, the marksheet of Class XI is not asked for, all that is considered when it comes to marksheets are your Board marksheets of Class X and XII. But, here, let's not forget the fact that there are many colleges in India teaching medical sciences and different colleges may have different rules. 

If you have any particular Medical Institution in mind then you can call up the authorities and ask for a clarification.

Hope that cleared your doubt.

All the best!