Thats great Subhash:clapping:.
Did you check what distance is required to project a 120 inch image? I think Projector Central has a model based calculator\look up table.
review says 13.2 feet for 100" without zoom
will be having slightly more than 15 feet
so i guess its fine , also when mounted above the level of screen it shud be fill up
but need to chk on this