Ma'am, as Arunachal Pradesh is the crown of our North East, sustainable tourism should be promoted keeping in view the rise in the quantum of tourism. There is a necessity to imbibe behavioural changes in the mindsets of tourists with the help of local community driven initiatives. The carrying capacity of places like Shergaon, Sangti, Tawang should be kept in mind to avert probable future calamities. So many concrete structures have started to dot the landscape. A regulation is necessitated perhaps.