Undergrad folks join at 20+2. 1 yr into the role they become equivalent to MBA hires.
MBA folks join at 26+5. This becomes ~45+10 in yr 2, 60+15 yr 4-5 etc.
You make partner at around 8-10 yrs post MBA. New partners make 1.5cr or so base, and then bonus which depends a lot on the market scene. Folks made 3cr+ as new partners in the COVID bull run. This year, unlikely that new partners will make more than 2cr (also note that partner promotions have also taken a hit).
Sr partners make the real $$$, they are the ones who bring in business, own relationships etc. Needless to say, there is significant variance in their earning - but think 7-10 cr and upwards
The attrition is very high. Any MBB would have hired around 150+ college students per year over the last 2-3 years. There are less than 100 partners across all the batches