After paying homage to the Father of the Nation at Rajghat, Reddy began his dharna at Jantar Mantar here.
A host of state ministers and MLAs from the Seemandhara region were also present on the dais. Later he was joined by four central ministers for a brief period.
The central ministers who met Reddy were M Pallam Raju, K Samba Siva Rao, D Purandeswari, Killi Kruparani.
Asked what would be their next course of action in the event of government introducing the bill, he replied, "We will decide at that point of time."
Union minister Pallam Raju alleged that the Bill is being proceeded against democratic norms.
"In its current form it, does not do justice to any region. Major concerns related to water and security of people living around Hyderabad have not been adequately addressed," he claimed.