Delhi had active interest due to security reasons that Sikkim merge with India. However, without local Sikkimise desire, the merger would have been impossible. India conducted a referendum in Sikkim in '75 and over 99% supported merger with India. And we havent heard any complaints from them since. It is one of the most developed states in India.Sikkim ? You mean it wasn't something New Delhi planned out and saw through from the very beginning.