Shetti had started his rally from Pune on May 22 and it reached Matunga today.
The rally will halt at Lalbaug tonight and march towards Rajbhavan tomorrow. The members will submit a memorandum of their demands to Maharashtra Governor C Vidyasagar Rao.
"The march is being held to express our repentance for supporting the BJP in Lok Sabha and the assembly elections," Lok Sabha MP from Hatkanangle said.
"They won the elections but hardly did anything in return to support us in agricultural reforms.
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The SSS is a constituent of the NDA as well as a part of the BJP-led Maharashtra government.
In the last six months, Shetti's close aide Sadabhau Khot has distanced himself from the MP and his frequent criticism of the state and Union governments over farmers' issues.
Khot is currently a minister of state for agriculture and cooperation in the Maharashtra government.
"This move may disappoint the middle class... Hence, the BJP is protecting the interests of urban middle class at the expense of the rural population," he alleged.
"I had joined hands with the BJP for the general and state elections as the party leaders had agreed to implement the recommendations of the of Swaminathan committee.
"The BJP-led NDA has completed three years in power at the Centre but there is no sign of implementation (of the recommendations) which will benefit the farmers," he said.