Ramjas College, University of Delhi

Yes, you can , there is no age to education . I did my MBA after a gap of 4 years and now doing my Phd. after a gap of 15 years .
Education is only thing in world where age is not the criteria .
what matters is your will and dedication

Dear,
The applicants must be registered with Delhi University to be eligible for admission in this college.
The candidates must have a minimum of 45% in 10+2 to be eligible for undergraduate admission. And wait for merit list and yes you can go through by the sports quota also bit it's having much knowledge and experience about the sport and rules and regulations and you have played state level or national level then u can apply

Yes, you can add GST subject but it depends on your choice like if you want to do physical education course then you will add your Marks of physical education

Amjas College, Delhi University Fee Structure and List of Courses Summary
CourseDurationFees
Bachelor of Commerce [B.Com]3 year (s)31,715
Bachelor of Commerce [B.Com] {Hons. }3 year (s)35,115
Master of Commerce [M.Com]2 year (s)21,883
Bachelor of Science [B.Sc]3 year (s)39,660. B.Com.