In Choice Based Credit Systems (CBCS) mandated by UGC across Indian universities, academic performance is evaluated per semester using SGPA (Semester Grade Point Average) and overall using CGPA (Cumulative Grade Point Average).
To convert your semester SGPAs into a cumulative CGPA, use the credit-weighted summation formula:
CGPA = ( (SGPA1 ร C1) + (SGPA2 ร C2) + ... + (SGPAn ร Cn) ) รท (C1 + C2 + ... + Cn)
Where C_i represents the total credit points assigned to semester i.