SSC GD cut-offs are decided after the exam based on vacancies, candidate count and paper difficulty — they change every year.
Separate cut-offs are announced for UR, OBC, SC, ST and EWS, and they also vary by state since vacancies differ state-wise.
Male and female candidates have separate cut-offs, and Naxal or militant-affected areas can have lower cut-offs.
Check the official cut-off PDF on the SSC website for the state and category you belong to, rather than relying on coaching-site guesses.