In winter there are so many places to visit in Uttarakhand or Himachal, like
Auli
Mussouri
Haridwar-Rishikesh
Nainital Ranikhet
Kasol-Tosh
Manali
mcleodganj Dharmsala
You can visit Shimla , Masoorie, Kausani, Barot valley , Dalhousie (HP)
Munsiari, Mount Abott, Jageshwar , Champawat, Nanital, Ranikhet, Saattal, Bhimtal, etc the list is never ending .. let me know if you plan any of these places ... Feel free to call up , I can suggest you some good places to stay over and food joints to satisfy your taste buds.
All the very best !