Hello friend go to shillong in police bazar and from there there are various bus trips to cover tourist destination....advantage is it will be cheap. But they probably don't take you to double decker living root Bridge which is a trek
Day1: Pick up from Ghy Airport transfer to Shillong night stay at Homestay/Guesthouse. Before check in the stay visit Umiam Lake, Donbosco museum, Gulf Coast, Ward's Lake and drop to the stay.
Day2: After breakfast start to Shillong peak, Elephant fall, then proceed to Mawphlang village(Sacred grove forest) n heritage village, Laitmawsiang village (Garden of caves), Wahkaba fall and proceed to Cherrapunjee for overnight at Homestay/Guesthouse.
Day3: Early morning start to Double decker (Nongriat village) and noon time back to Cherrapunjee sightseeing. Overnight again at Cherrapunjee.
Day4: After breakfast Cherrapunjee to Mawlynnong cleanest Village in Asia on the way visit Pomlum viewpoint, Living root bridge, sky walk view point, Balancing rock, Village around and overnight stay at Mawlynnong.
Day5: Mawlynnong to Khrangsuri fall, Dawki (boating), visit Indo-Bangla border and evening back to Mawlynnong for night stay.
Day6: Mawlynnong to Tea garden near Shillong airforce, Laitlum canyon, sweet fall, cathedral church and drop to Guesthouse/Homestay at Shillong.
Day7: Shillong to Mawsynram and evening back to Shillong night stay.
Day8: Shillong to Guwahati visit Kamakhya mandir, Amanda Island and drop to Guesthouse /Hotel/Resort.
Day9: After you finish packing your bags and everything, visit the zoo, market and do shopping as your wish and drop to Ghy airport. End of the Tour