Airtel network not available

I ported my sim from airtel maharashtra to airtel UP east because i have aadhaar from UP and sim from maharashtra so there was problem in linking. Airtel retailer suggested to get the sim ported from maharashtra to UP. I did that. I raised a porting request on 15th Feb 2018 and on 18th I travelled to US. Now the sim is ported but the network is not there. Now I have lost network from both the sim. Please suggest what i have to in order to get the network in my new sim in US.

Kindly look into this matter as soon as possible.

Email - vivek.ec.1118@gmail.com