Income tax department cannot be contacted on Airtel phone

Due to resume, identity theft racket in the indian internet sector, some citizens prefer to send ITR-V by speed post
However, the income tax department has not updated its records with the receipt of the ITR-V though Indian post is claiming that ITR-V was delivered in August
The phone numbers on the income tax website are
1800 103 0025 – gives a fax tone
1800 419 0025 – asks for mobile number, and then says the mobile number is not registered with the income tax department
with airtel mobile, the user is getting the message that the number does not exist
Due to heavy rains, the phone problems may be temporary, yet it is very inconvenient for the citizen who trying to trace their ITR-V