It’s not the website problem or Rehnaa Hai Terre Dil Mein file problem, it is your hardware problem.
If you’re using old hardware and have low specifications, you will have problems with no or late audio/voice/sound, and even can’t play the video file, even if you download it. Internet speed connection is also very important for this Rehnaa Hai Terre Dil Mein processing file. Many new movies videos file such as Rehnaa Hai Terre Dil Mein, are not able to be played again in low spec gadgets or old hardware. As you must know from now on, technology keeps evolving.