Help needed for backing track!!!

Hi!
I was wondering if there is anyway to make a গিটার backing track on your phone, since I can't play any instruments!

গিটার would be Acoustic অথবা খাদ (I think) maybe electric গিটার but I highly doubt it!

I'm entering a talent contest with this song and have 5 weeks to get a backing track of some sort for it!

Any help would be awesome thank you!