See the details below:

Day 1 : BKK/DEL/KMT Paro
Day 2 : Halt in Paro
Day 3 : Paro to Thimphu (Capital)
Day 4 : Halt in Thimphu
Day 5 : Thimphu to Punakha (Old Capital)
Day 6 : Punakha to Trongsa
Day 7 : Trongsa to Bumthang
Day 8 : Sightseeing in Bumthang
Day 9 : Visit Tharpaling Monastery in Bumthang
Day 10 : Visit Tang Valley in Bumthang
Day 11 : Bumthang to Mongar
Day 12 : Monggar:Visit Khoma village
Day 13 : Monggar to Trashigang
Day 14 : Trashigang to Trashi Yangtsi (To and Fro Overnight)
Day 15 : Trashigang to Samdrup Jongkhar
Day 16 : Samdrup Jongkhar to Gwahati Airport (Assam, India)