In the purported five-second clip, Reddy is seen addressing a poll rally in Nalgonda on Tuesday and is heard saying in Telegu 'Sonia Gandhi is going to give the CM position to me if the party comes to power. There is no one senior to me here'.
The 13 members include, sitting Congress MLA Danasari Anasuya (Seethakka) and former legislator Vem Narendar Reddy.
Unless the merger is reversed, the Congress is set to lose its Opposition Party status in the state assembly.
While Asaduddin was booked for his alleged involvement in the attack on Congress MLC Shabbir Ali on Tuesday, a case was filed against Akbaruddin after his followers allegedly assaulted M K Mahender, a BJP civic poll candidate, Deputy Commissioner of Police (South) V Satyanarayana said.
Revanth, the Congress candidate for Kodangal constituency had called a protest rally and a bandh against Rao's scheduled meeting at Kosigi in the assembly segment on Tuesday evening.
Superintendent of Police Malla Reddy said Koneru Krishna, brother of TRS MLA Koneru Kannappa, has been arrested and booked under various sections of the IPC.
'A pro-Modi wave and anti-incumbency will be incomplete without strong candidates.'
The party's gamble to go in for early elections paid rich dividends.
The leaders alleged that those who had no contribution in the freedom struggle wanted to spread fear 'in the name of nationalism', suppress the voice of people and were questioning the legacy of Congress.
Polling for three parliamentary seats and 29 assembly constituencies were held on October 30, an exercise being seen as a barometer of the political mood in the country ahead of assembly elections in politically critical Uttar Pradesh as well as other states.
This time however, the poll panel did not share the overall polling percentage at its briefing.