Siva Koti was arrested and sent in remand, said Ramgopalpet police station inspector A Ganga Reddy.
The incident occurred when Odisha native Bhakta Pravallika Rana (22), employed with a software firm in the city, was returning in Koti's boat after visiting the statue of Buddha located in the middle of Hussain Sagar lake, along with three others.
Koti was turning the boat after getting closer to another boat when its sharp edge hit Rana's neck causing a slit, police had said.
Police have already registered a case under section 304-A (causing death by rash and negligent act) of IPC.
