The legislators have written a letter to Speaker Madhusudhana Chary in this connection.
"We (the 10 members) request for accepting our merger into Telangana Rashtra Samithi Legislature Party in Telangana Legislative Assembly with immediate effect," they said in the letter.
"Accordingly, henceforth, our names may please be shown in the list of TRS Legislature Party in Telangana Legislative Assembly," the letter stated.
The decision to merge with the ruling party was taken by the legislators at a meeting yesterday, it said.
They quit the Chandrababu Naidu-led Opposition party at different times over the last several months. TDP had won 15 seats in the 2014 Assembly elections.
In a related development, TDP sought the disqualification of four of these MLAs, who quit the party this week. The Opposition party called the conduct of these legislators as "unethical and unconstitutional".
"The members dissented from the party and joined TRS in presence of K Chandrasekhar Rao, President of TRS, which is unethical and unconstitutional and opposed to democratic principles.
The letter named Dayakar, Goud, Vivekananda and Rajender Reddy.
