Grabage disposer not working - need it serviced

Hi

My garbage disposer is not working for some time. It is a grinder kind of thing attached to sink which will crush all debris to pulp before going down the drain. Because of this, my sink get clogged very often. Can someone suggest a service center number/name in Bangalore (preferably in Kalyan Nagar, Banaswadi area)which can fix this? I tried many plumbers/ electricians but nobody knows how to fix this.

Moderator - Please let me know if I posted in correct section or it need to be moved to Home improvement section.

 

I think I posted in wrong section. I request moderator to please moe this thread to 'beautiful kitchen and Spotless home' section . Maybe someone there can reply .