Kadina Rahasya (1969) is a jungle mystery film which is based unofficially on, of all things, Sōji Yamakawa’s Tiger Boy picture story! Raja, an otherwise adult hero, is a loincloth wearer like Tiger Boy. It’s got a vcd release on Amazon India.
https://youtu.be/NGxdPft3YxU?si=pLOEJSsM1qyNsVkt
https://www.amazon.in/Kaadina-Rahasya-K-S-Ashwath/dp/B00JWUGIJQ

another I need to find as the parts of this film that I viewed look good and it sort of reminds me of the Zimbo jungle films

Karsten