Airtel — 3g service is not under coverage

Address:

Darjeeling, West Bengal, 734203

With deep dissatisfaction, I would like to inform that Airtel which brag about it's network connection whether at urban or rural areas, fails to keep its promise. In my area, the internet connection is too poor to open a single page. 3g SERVICE IS NOT UNDER COVERAGE .
In my opinion Airtel first should fix the issue regarding the coverage of 3g in semi urban areas then continue upgrading it's network. Many a times we people from this area have complained the matter to the customer care executive but no work has been done yet.
Every possible stuffs has been done but the 3g issue is still on it's run.
My area description- Place- Kurseong, Pin Code- 734203, State- West Bengal.
The other details can be find out through Adhaar card link on my number which has been made.

PLEASE KINDLY FIX THE PROBLEM ASAP.
If the same continues then I fear I will have to quit Airtel.