Hey Preity, Here are few romantic destinations for you :- Gangtok Pelling Lachung Lake tsomgo Yuksom Khecheopalri Lake Nathula pass Sikkim in all in all would be a best place for romantic getaway now ... Happy Travelling!!!
Hey Preity, I would suggest Darjeeling and Sikkim tour. Route : Take a train and reach NJP-> Jeep from NJP to Darjeeling( 4 hours)-> Spend two days there->Jeep from Darjeeling to Gangtok ( 5 hours)-> Minimum 4 days at gangtok : Day1 in Gangtok: Nathula pass, Baba Harbhajan Mandir, Changu Lake Day2&3&4: North Sikkim tour ( Yumthang Valley, Zero points, Gurudongmar lake ) Happy travelling!!!!!!!!