A bulletin to this effect has been issued, official sources said here today.
"They are now treated as members of TRS," the sources said.
Out of the 15 MLAs who won on TDP ticket in the 2014 Assembly elections, 12 have switched over to TRS since then.
The Chandrababu Naidu-led party, which is ruling adjoining Andhra Pradesh, is now left with just three MLAs -- A Revanth Reddy, Sandra Venkata Veeraiah and R Krishnaiah.
Two more -- M Gopinath and Arikapudi Gandhi -- have joined them in the last few days. Yesterday, TDP suspended the duo for violating party discipline and principles.
The Budget session of Telangana Assembly began today.