Hi @mrindian ,
Just handling the phone may be enough to cause more damage if the screen is already cracked.
There may be more damage internally in the screen and therefore not visible.
If you can operate the phone for a little while, connect the phone to a PC via a USB cable and enable file transfer.
That way you can access your documents (or transfer them to the PC) in case the screen totally fails.
Alternatively back up the phone to the cloud.
Here’s a [https://www.youtube.com/watch?v=a98H1lPp0VU|video] that shows how to replace the screen that may help.
Replacement screens are available online. Just search for ''Xiaomi Redmi Note 3 screen'' to get results for suppliers that suit you.