Hi Kavya, thank you for your video, this is wonderful. What a great tone you have. From what I can see you have a great sense of how you make the sounds with your mouth and your tone is lovely and consistent. I would focus on your tuning, but I think the tuning is coming from your tongue muscle being weak, I would have said tongue training would probably fix your tuning. You are sitting quite consistently under the tone (flat) but that is often fixed with a higher tongue position overall. I was quite surprised to hear you singing classically, ;) It was wonderful I love teaching classical singing but I don't get to do it often! What a treat!