downmelodylane.com has a list of non-filmi songs by Talat Mahmood.
In it three songs are credited to Sahir.
However they are not listed in talatmahmood.net

So hoping they are available and requesting them. Thanks

Taaqat se Jhuka Le - Sahir

Ek Hai Apni..Aawaz Do - Sahir

Chhupaya Is Tarah Se - Sahir

Ek Hai Apni Zameen, Ek Hai Apna Gagan
Ek Hai Apna Jahaan, Ek Hai Apna Watan.....

is also sung by Rafi sahab. Didn't know this was penned by Sahir Ludhianvi!

Ek Hai Apni Zameen, Ek Hai Apna Gagan
Ek Hai Apna Jahaan, Ek Hai Apna Watan
Apne Sabhi Sukh Ek Hain, Apne Sabhi Gham Ek Hain
Aawaaz Do Hum Ek Hain, Hum Ek Hain........
(Indo-China War 1962)

Well credit for that song was given to Khaaiyyaam - Jaan Nissar Akthar.
Then it is probably in error.