Hi abhijit52,
Thanks for reaching out to Apple Support Communities. It sounds like you have a question about your iPad charging and battery. We're happy to help.
We recommend you keep your iPad within the acceptable ambient temperatures as listed here: Keeping iPhone, iPad, and iPod touch within acceptable operating temperatures
Additionally you'll find:
When you use the device or charge the battery, the device might get warm. You might notice that your device feels warmer in these situations:
- When you set up your device the first time
- When you restore from a backup
- When apps reindex or reanalyze data, like Photos tagging for faces, places, or keywords after a software update
- When you use graphics-intensive or augmented-reality apps or features
These conditions are normal, and your device will return to a regular temperature when complete.
When and if your iPad becomes frozen when using a specific app that may be graphic intensive, the steps here can assist: If your iPhone, iPad, or iPod touch won't turn on or is frozen
You'll also want to ensure you're only using certified Apple accessories: Identify counterfeit or uncertified Lightning connector accessories
You can also check for specific apps or usage for your battery, with the steps in the article here: About the battery usage on your iPhone, iPad, and iPod touch
We recommend you do have a backup of your information, in the event you'll need to visit an Apple Authorized Service Provider in the future. Those steps can be found here: How to back up your iPhone, iPad, and iPod touch
Cheers!