As a depressed teenager I can totally relate to Mini. Mini is the the best character according to me. Her character is so realistic. It's Mini's life. She can spend her time with her grandparents if she wants. And Babita is the reason why she ended up there in the first place. If Babita didn't avoid HS and went to Mini's room, Lalley wo sab mini ko kehta hi nahi, mini waha jati hi nahi.She's just trying to give HS and babes some alone time. When you have depression you think you're a burden on earth and everyone is better off without you. She didn't wanna trouble babes by her existence (as lalley said kisiko uski zarurat nahi hai)