Difference between 7 CPC & 6 CPC Salary

Dear Friends,

I am in GP 2400 and earning a gross salary of Rs.30/- K per month. I am looking at other options of joining private companies for more salary. Currently I have an Offer of a company for around 36-37K per month gross.

I am working in govt GP 2400 since past 4.5 years and would like to know the effect of 7 CPC on my salary. Like what would be my gross salary on implementation of 7 CPC and from which date will the 7 CPC be effective.