Any seniors that know the passing category for end sems?

i am a btech first year student and i am nervous about the results coming out. i have passed from my internals and midsems since the minimum marks required is 35/100 overall and have already gotten more than than but i am worried about not scoring good grades in end sems... is there a certain marks i require to get to pass? like for my friends college it is 15/100 is there such a category in our university too? or just have overall over 35 is enough? also do you get backs in continous evaluation subjects like c? if so how do u clear these backs???