How to contact Airtel Customer support using non-Airtel mobile/landline

[Brownspear]

How do one conctact Airtel 121 customer support number if he uses jio’s carrier. The carrier wont allow to connect to 121.

 

[Sushubh]

44444198 with your local area code should work I guess?
There is also this 1800-102030-121. Truecaller also marks it as airtel customer care number but this does not work for me.

 

[ps111193]

9829012345