The meeting, slated to be attended by all political parties of the hills, is scheduled to begin at 1 pm.
This is the third such meeting in 22 days. The first and the second all-party meetings were held on June 20 and June 29.
The event will also witness the first meeting of the newly-formed Gorkhaland Movement Coordination Committee (GMCC) and take a call on the ongoing agitation in the hills over the demand for Gorkhaland.
The GJM has plans to take out rallies today, demanding Gorkhaland and burn copies of the GTA accord.
Except pharmacies, all shops, schools and colleges remained closed.
Police and security forces patrolled the streets and kept a vigil on entry and exit routes.