YSR Congress Party President YS Jaganmohan Reddy, who was attacked with a knife on Thursday, has refused to record his statement with the Andhra Pradesh Police saying he has no trust in them.
The Leader of opposition in the Andhra Pradesh Assembly told the police team that he will give his statement to any other investigation agency.
Jagan sustained a minor injury on his left arm after a youth working as a waiter at a restaurant in the Visakhapatnam airport attacked him with a small knife. The incident occurred when Jagan was waiting to board a flight to Hyderabad.
He was admitted to a hospital after landing from Visakhapatnam on Thursday, where he spent about 24 hours. The doctors advised him a week's rest.
The YSRCP chief later left for his residence in the city.
Meanwhile, YSRCP leader Y.V. Subba Reddy and two others moved the Hyderabad High Court on Friday, seeking probe by a central agency into the attack on Jagan.
Police in Visakhapatnam said they were still investigating the case. J. Srinivas Rao, who was arrested immediately after the attack, will be produced before a magistrate later in the day.
Visakhapatnam Police Commissioner Mahesh Chandra Laddha told reporters on Friday that the police would seek custody of the accused.
Andhra Pradesh Director General of Police R.P. Thakur had said on Thursday that the accused was Jagan's fan. He said the youth might have carried out the attack for publicity.
The police commissioner said the accused used a small knife generally used in cockfights. "It was eight centimetres long and of this only 3 centimetres was the sharp portion," he said.
The ruling Telugu Desam Party (TDP) reiterated allegations that the attack on Jagan was part of a conspiracy to destabilize the state. Its leaders alleged that Jagan, the BJP, Pawan Kalyan and Telangana Chief Minister K. Chandrshekhar Rao were behind the conspiracy.
Chief Minister N. Chandrababu Naidu's son and cabinet minister Nara Lokesh on Friday termed the incident a drama by YSRCP.
Lokesh tweeted that Jagan staged the drama due to fear of another defeat in the elections.