@umalkars: Water cannot reach the rear seat area in isolation. If the culprit is indeed the AC condensor tube, then the seepage is most probably occuring through the cutouts for the clutch/accelerator/brake pedals. Check the carpet under the driver's seat. Is it wet? If yes, then it is 100% given that the ac condensor tube is responsible for wetting the rear seat area too.
Take your Safari to an aftermarket AC fitment shop and ask the guy to route the AC condensor tube properly. If he has never handled a Safari AC earlier, then better take it to TASS. Once the condensor tube is routed the way it is supposed to be, and there are no missing grommets on the floor, your water seepage problem would disappear.