This is because of the TRS government's attitude towards the RTC strike and especially towards the TMU, which has always stood by the TRS government. The TMU also feels that the TRS government is encouraging the AITUC, which is backed by the CPI, in the upcoming recognition union elections. They feel that the TRS has entered into an agreement with the CPI leadership ahead of the Huzurnagar elections to weaken the TMU. So, they have decided to break away from the TRS.
As part of this, the TMU has unfurled flags in white colour. This indicates that the employees have moved away from the TRS. What impact this will have on the voters in Telangana remains to be seen.