PG Diploma In Advanced Computing (DAC) from C-DAC or any certification course from NIIT

i am final year engg. student(C.S.E) and i got 70 in 10 and 56 in 12 and 64 in B.E and my classmate said all company have the throughout 60% criteria to sit in campus drive so i thought a diploma or certification can help me so which is better a diploma or certification and from where cdac or niit.