If you are an audiophile, the official Indian Blu-Ray release of Interstellar often contained a Hindi 5.1 Dolby Digital audio track. You can purchase pre-owned copies on Amazon India or Flipkart.
The official Hindi dub of Interstellar is done by Sound & Vision India. The voice for Cooper (McConaughey) is deep and emotional. interstellar hindi audio track link
However, there are "fan dubs" available on YouTube (short clips) and certain forums. Avoid these. Fan dubs often have background noise, inconsistent volumes (loud then silent), and ruin the climax where Cooper is screaming inside the tesseract. If you are an audiophile, the official Indian
Even if you find a "clean" Hindi track, you face the Sync Issue. The official Hindi dub of Interstellar is done
Very old licenses allowed Sony LIV to stream the Hindi dub, but that license has largely expired.