I should have searched posts by Sudarshan Talwar and MN Sardana for this song from Haqeeqat (1964).
MN Sardana mentions that Raj (Johny) Bkashi played a double role. He also appeared as a Sikh soldier
Kharag Singh noticed that Rafi also sang for Prem Sagar, a fact already mentioned by Sudarshan Talwar in a post. I regret missing this information. Here he is
Now You Know!