Plan for Bhutan(obtain travel permit from kolkata) or when you enter Bhutan which takes longer waiting hours Day 1- flight from delhi to bagdodara(2.5hrs). Take a cab from bagdodara to Phutshuling(4hrs).
Take a taxi from taxistand to thimpu( 5 hrs).and halt overnight.
(Norzim lam - main road in thimpu with hotels). Day 2- sightseeing in Thimpu.Tashi Cho Dzong, memorial chortrn,buddha view point,changangkhs hakhang,overnight stay. Day3- thimpu to punakha-on way visit Dochula pass, wangriphodrang, punakha dzong,stop of metsina n walk till chimi lakhang., . overnight stay in punakha.
(Stay in Dochula Cafeteria lodge for view of snow mountains) Day 4-(optional). Punakha to phojikha valley( 3hrs). nd goempa monastery.overnught at punakha. Day 5: punakha to paro.(4 hrs). Visit paro dzong, kichu lhakhang,evening walk in paro town,national musuem. Day 6:hike to tiger nest temple.overnight stay in paro. Dayy 7: paro to Ha valley(3 hrs). Overnight paro.
Tourist going beyond Thimphu and Paro need to acquire a 'special area permit' from the RGoB Immigration Office at Thimphu on any working days (Monday to Friday) Cost will depend on from where are you starting.. From Bagdodara, if u calculate, it may cost around ₹25- 30k per person.