Airtel — for my experience letter

Address:

Near durga dham park, नियर दुर्गा धाम पार्क, Allahabad, Uttar Pradesh, 211003

I didnt get my experience letter from bhartiya airtel private limited...i had worked as promoter in airtel from last year 2018 to this year 2019...kindly provide my experience letter as soon as possible by mail...because it effected my career growth...just because of this i cant apply on others company...just because of this i used to apply as a fresher...sir please provide my experience letter by mail