Hii Deepan,

No, it is not compulsory for sc students to score 75 percentage. In most of the examination the weightage of sc students is more. They have to secure only 45- 50 percentage.

ALL THE BEST!!

Hello aspirant,
As per your query you need to know that in most of the entrance examinations and while taking admission in colleges the minimum eligibility criteria for sc students is that they have to score atleast 45-50% in 12th.
So if you are asking regarding entrance examination and to take admission in college then less than 75% is enough but for merit based admission in top colleges it is quite difficult .It is not compulsory to get 75% for sc students but still try to work hard.
Good luck,thank yoy.