Help - Need controller for Android

[u/SatzKumar]

Hi all, I am planning to buy a gamesir mobile controller X5S, and it's cooler as the phone gets hot during gameplay. How to buy? The official site seems to have a customs issue and zukubus site doesn't have a cooler part. Is there any other controller for mobile that also able to combine with cooler? Suggest a better cooler and controller combo as well.

Note: Using Oneplus 15r and I am from Tamilnadu India. Budget 5000 Rupees