Hello Virat,

Hope you are doing well. There is no specification of minimum marks in 10th and 12th that will allow you to sit for placements for all the companies. Every companies have their own requirements which they mention in their eligibility criteria. For most of the companies these are usually 65% in both 10th and 12th.

However, they do differ significantly as there are companies who even ask for 85% and above in both 10th and 12th and companies which only require 60%.

Percentage calculation entirely depends on your college. Based on your board, it is decided. However, for CBSE, best of 5 is always taken.

Hope this helps.