Why was the Telangana Legislative Council able to come to existence but not the ones of Assam or Rajasthan?
From this article,
The Assam Assembly in 2010 and the Rajasthan Assembly in 2012 passed resolutions for setting up a Legislative Council in their respective states. Both Bills are pending in Rajya Sabha.
From the article on Telangana Legislative Council,
The Vidhan Parishad has been in existence from 2 June 2014 after bifurcation from the state of Andhra Pradesh.
Why is it that the Telangana Legislative Council came into existence immediately after its creation?
What is hindering the creation of legislative councils of Assam and Rajasthan?