If they want Gorkhaland, let them have it as long as they are Indian - does it matter? One more Indian state is not a big deal, of course they have to prove that Gorkhaland, will be viable as a state - i.e. Not one of these beggar state(kashmir).
Gorkhas are part of Indian regiment, it does'nt meant that need to have a separate state in India as they aleready have Nepal. It is meaningless to fight for a separate state within India. In the future if India gives a separate tate for Gorkhas, then in the further future they may try to make that state to a separate country joining hands with the Maoist of Nepal and china. So, it is better to wipe out such demands and the peoples who demand for a separate Gorkha land.
And also it should be a warning to peoples and races who are demanding to keep their mouth shut forever. It is enough dividing Indian into different states based upon the language.