MUMBAI: A day after 30-year-old Roshan Babu Suvarna was arrested by Borivali Government Railway Police (GRP) for allegedly killing 22-year-old Mayank Ramesh Lohar inside a moving suburban local between Malad and Borivali late on Tuesday night, preliminary investigations revealed that Suvarna is reportedly a habitual drinker who confessed to consuming a bottle of rum before his journey home on Tuesday night. A short-tempered man, he was known to pick quarrels with watchmen and auto drivers over petty issues. Police also noted that the kitchen knife he used to stab Lohar multiple times was newly bought. Accused was a habitual drinker and short-tempered: Police The accused, arrested in Panvel while trying to flee to his hometown, Mangaluru, was produced before the Borivali magistrate court on Thursday, where GRP officers sought his seven-day custody, arguing they needed time to recover the knife he discarded after stepping out of Borivali station. The court, however, remanded the accused to police custody for five days. An HSC dropout An unmarried man, Suvarna lives in a rented apartment in Meghdoot Tower, …