Okay. Relax. It's ok.
First of all, do you have any other card whose limit is equal to or more than Neu card?
If yes, you can withdraw from that card and pay this one. It will bear some 1-2% charges.
If no, convert the trxn into EMI and pay.
I would not suggest to make part payments or take personal loan.
Reat assured, you are not alone. There are enormous people's who have 5-6L or more cc debt and carrying forward since times. It's just matter of few months or yrs.