I intend to apply for BCG/Mckinsey in London

Bachelor graduate from German business school and work since Spring 2018 for a Malaysian based PE in Mumbai, India. Most of my colleagues are ex-BCG and I have received two referrals that are now passed onto Senior Partners in London.

In Germany, the attention given towards grades is quite high. Since my undergrad grades are certainly not representing the standards set by the majority of applicant and current consultans, I wonder to what extend grades play a role for London. Does the referral and extensive work experience (2.5 years that include M&A and PE) outweigh bad grades?

Also, if anybody could share some insight on the interview process and certain evaluation criteria, that would be very helpful.