Mindtickle LLD round for SDE-1, can someone from Mindtickle share insight on how this round goes?

This is going to be the first LLD round I am going to appear for. Do I have to write code for the whole system or just classess and function and what type of questions could be asked?

TC and yoe?

Current tc - 16lpa, yoe - 1, offered tc- 20lpa

What is your tech stack