What surprised me after coming from India to the US for grad school in Engineering, was the mad emphasis put on grades here. Back home, I either cared enough to do coursework extremely well, or give up on it (the consequences were usually harmless career wise). Here though, its an entirely different ball game (I was surprised how anxious students here are about assignments and exams).

Then again, I did get I into a very good grad school despite having awful grades; so fret not. I guess employers in India care far more about which college one graduated from more than one's grades.