Hi mujahidhussain63,
From what you described in your original post, we recommend you check out the article in the link below since your iPad is overheating.
If your iPhone or iPad gets too hot or too cold
Next, click to open the link, then read through the section titled "If your device gets too warm."
iOS and iPadOS devices have built-in protections to prevent overheating. If the interior temperature of your device exceeds the normal operating range, your device will protect its internal components by attempting to regulate its temperature.
Avoid these conditions and activities because they might change the performance of your device:
*Leaving your device in a car on a hot day.
*Leaving your device in direct sunlight for an extended period of time.
*Using certain features in hot conditions or direct sunlight for an extended period of time, such as GPS tracking or navigation in a car, playing a graphics-intensive game, or using augmented-reality apps.
If the interior temperature of your device exceeds the normal operating range, you might notice these changes:
*Charging, including wireless charging, slows or stops.
*The display dims or goes black.
*Cellular radios enter a low-power state. The signal might weaken during this time.
*The camera flash is temporarily disabled.
*Performance slows with graphics-intensive or augmented-reality apps or features.
Additionally, if you're navigating, your device might show this alert and turn off the display: "Temperature: iPhone needs to cool down." Navigation still provides audible turn-by-turn directions. When approaching a turn, the display will illuminate to guide you through the turn.
The reason why we are recommending the steps above is because they will teach you about the operating temperatures and temperature management of your iPad.
As for the issue that you mentioned about your battery draining faster than expected on your iPad, we recommend that you try the steps here: Maximizing Battery Life and Lifespan
Please let us know the outcome after giving the above steps a try.
Cheers!