More information and update:-
1.) It was html export
2.) Actually I currently don't have active plan so I export html and then run it locally on my mobile using web server. My game opened but except tilt feature, everything was working
Now in order to show my html export here,I uploaded to netlify. But lol, "now" tilt feature was working
testtilt.netlify.app
Issue was with local web server. And for future reference,if someone is using local web server and tilt(or maybe something else too is not working) then issue is with local server
Thanks for the replies