Just go to Udaipur.. perfect destination for honeymoon...i went there too but not for honeymoon but to enjoy the beauty... i also recommend u too booked hotel near Udai-Palace coz the view in winter is too surprising..i also recommend you a hotel actually it's a hotel .....very beautiful in budget also name was Bunkyard Hostel. Don't think just go...it will be memorable trip i swear😄👍
Well 4-5 days totally depends on your preference and the place where you are starting from. Few Great Options: 1. Udaipur
2. Manali 3. Jaipur and Ajmer
5. Nainital and Mukteshwar These are definitely doable under 20000 wherever you start from.