Airtel — I am not getting a single network inside my house

Address:

New Delhi, Delhi, 110039

I a. Not getting a single bar of the network in my my both handset. I am recently using 2 numbers of airtel but the network of airtel is very poor inside my house. And my phone no. Is [protected] and the alternate no. Is [protected]. I am not getting network thats why i am facing problem in my bussiness because my business is a call based business if i am not getting a call then how can i connect to people those who want to connect with my company

So please resolve my problem