Ritesh Pandey, Bahujan Samaj Party (BSP) MLA from Ambedkarnagar and brother of Ashish Pandey has written a letter saying, "Our entire family is ready to cooperate in the investigation and media is being biased in reporting the incident".
Ashish Pandey was seen brandishing a gun outside Delhi's Hyatt Regency hotel on Sunday.
Meanwhile, Patiala House Court on Wednesday issued non-bailable warrant against Ashish Pandey, son of former BSP MP Rakesh Pandey.
Following the incident, the police rushed five of its teams to Lucknow and alerted all airports across the country to trace the accused.
"The police have registered a case. We are coordinating with the Uttar Pradesh Police and teams are looking out for him," Joint Commissioner of Police (New Delhi) Ajay Chaudhary said, on Tuesday.
"We have added the relevant sections based on the video. A LOC has been opened up for him. Check posts along the UP-Nepal border have been put on an alert and LOCs have been issued at all airports across the country," he said.
"No complaint was lodged by the victim and the hotel staff the same day. There is negligence on the part of the victim, hotel authorities and the accused," he said.
The Delhi Police has also issued a show-cause notice to Hyatt Regency and sought a reply as to why action should not be taken against it. The hotel has been given 15 days to respond to the notice.
In a statement issued earlier in the day, Hyatt Regency assured the authorities conducting the probe of full cooperation.
Ashish Pandey is a realtor and owns petrol pumps. His phone was switched off.
The Delhi Police said the complaint about the incident was received on Monday from the assistant security manager of the Hyatt Regency hotel in RK Puram.
The incident, a video of which went viral on the social media, occurred in the early hours of Sunday, police said.
After the video went viral, Gaurav, son of former Congress MLA Kanwar Karan Singh, sent a written statement on Tuesday afternoon to the police. In the evening, he went to the police in person and recorded his statement.
Gaurav, a businessman in his late 20s, had gone to the woman's washroom in the hotel to help a friend, who was unwell and Pandey's friends, who came to the washroom, created a ruckus over it and subsequently, it snowballed into an argument.
Pandey then walked up to his car and got the weapon from it.
Police said the security staff of the hotel told them that the accused and victims were partying at a nightclub in the hotel and had an argument over using the washroom.
A woman accompanying the accused abused the victims and called them "transgenders", a senior official privy to the probe said.
It is suspected that both the parties involved were drunk at the time of the incident, he said.
The Delhi Police said an FIR has been registered under the Arms Act and sections of the IPC, including those related to causing hurt (323), criminal intimidation (506) and using force with the intent to outrage the modesty of a woman (354).
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(With inputs from agencies)
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