GDPI tips and suggestions

Calling all the seniors and the people who have gone through the GDPI process previously. Please guide us and drop any suggestions, information relevant to it. Which coachings/institutes to join for getting prepared or giving mocks. Any free resources and insights for any colleges. All the do's and don'ts.

Kindly drop your knowledge and help your juniors in the community.

My profile- 8/6/7. 22 months workex. GNEM. Targetting colleges like GIM,GLIM, FORE. Anything college specific will also be very helpful. Please help us out.