Amritsar to Batala is 38-39 km only, you can buy only same day(journey day) onward (ASR to Batala)and return journey(Batala to ASR) ticket from UTS counter. Generally they refuse return tickets, because if you do not want to travel (due to any reason)after buying onward and return ticket, you will get refund of onward ticket only. Return ticket (Batala to Asr) can be cancelled at Batala UTS Counter only. You can meet booking officer regarding this.