Most pf the Places would be super crowded if you are a party animal , you can go for Goa and Pondicherry. If you like to spend it peacefully , it would be Gokarna
If you are like winters and don't mind snow, you can visit a lot of places like Auli, Manali, Dalhousie, Shimla, Kinnaur, all of them look different under a blanket of snow. You can opt for winter treks like Chopta, Parashar Lake and Nag Tibba.
If you want to visit warmer places you can head to Rajasthan, Great Rann of Kutch, Goa, Kerala and Andaman