Re: What did/will you wear under your lehnga/gharara?
I am not au fait with Sarees - having never worn one - but I would imagine if your sari blouse is short then it would depend how the sari is draped - maybe some clever draping could do the trick. Otherwise can you get a blouse that is longer?
Also if you have a bit of tummy - I find avoiding carbs a week or two before the big day can help flatten the tummy down temporarily - not something I would recommend as a sustainable weight loss solution but in the short term is does work - well for me at least.