My phone is no graphic no light

@rishimohanty this "but no light and graphics" sure sounds like a bad display assembly. Yes, it is possible that this is a board issue etc., but you want to start of by replacing the display. If nothing else it will give you a known-well starting point for further troubleshooting.

Since iFixit does not yet have a guide for that, use the one from here

Screens are still available at many online stores. Purchase from a seller that appeals to you and is close to you geographic location.

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!