Hi Jhanvi, You could visit Buddha point, National Memorial, Punakha dzong, Suspension bridge and a ton of local markets in Thimphu and Punakha. You can visit Chelala pass, Dochula pass and Chimi Lhakhang temple on the way.
Thimphu: Buddha point, Memorial chorten, changangkha lhakhang, Takin Preserve, Zilukha Nunnery, simply Bhutan, Folk heritage museum, Simtokha Dzong, Textile museum, Craft Bazar, Centenerary farmers market and Tashichhoe Dzong. Punakha:
Dochula Pass, Chimi Lhakhang, Punakha Dzong, Suspension Bridge and khamsum yulley namgyel chorten. Popular Drinks are Druk 11000, Local Ara and Peach wines.