I have been assaulted and beaten up with a rod for entering my apartments cellar parking

So heres how it goes. I (19m) stay in a apartment township which comprises of three blocks a, b and c. A couple days ago i took a delivery on my friends behalf. Me and a friend 20f went into the cellar parking to check the delivered items. We havent even gone deep inside the cellar, we were only near the entrance when two people entered and started harrasing us. Even though i explained to him that i reside in the B block, he kept threatening me asking how i could come into the C block's cellar, exclaiming how the cellar was his. I explained how i did not know such rules exist and told him that ill leave and not come back and told my friend to do so as well. Now one guy starts chasing me and the other stops my friend in the cellar, not letting her leave. This is what unfolds near the main gate after he caught onto me. I have multiple injuries from the beating and he tore my shirt on purpose. Now all of the society members are under the pretext that i took a girl into the parking having bad intentions to do something down there and are justifying beating me up.