Asking who will be held responsible for deaths of farmers during the protest, Harsimrat said the Centre has lost the trust of farmers across the country.
She said his government in Delhi was among the first to notify one of the central laws related to agriculture.
Mann said the Centre was trying to "run away" from discussing "anti-farmer" agri laws which have led to the farmers' protest, while Badal described the government's move as "murder of democracy".
The SAD, which quit the NDA before the enactment of the farm bills, termed the move "political vendetta".
BJP-led NDA turned blind eye to Punjab, it's not the alliance envisioned by Vajpayee: Harsimrat Kaur
The SAD's alliance began with BJP's precursor Jan Sangh in 1967, and thereafter both parties have contested most of the elections together.
Notably, around 30 farmers' outfits have already given a call for a complete shutdown in Punjab on September 25 in protest against the Bills.
One of the oldest allies of the ruling BJP, the SAD has come out strongly against the three bills which are meant to deregulate the sale of farm produce.
Saddened my voice in farmers' support was not heard: Harsimrat Kaur Badal after resigning from Modi cabinet
The leader resigned soon after her husband and SAD president Sukhbir Singh Badal strongly opposed the bills in Lok Sabha on Thursday night
SAD part of NDA, Harsimrat Kaur Badal's resignation its 'political decision': Punjab BJP chief Ashwani
Punjab BJP chief Ashwani Sharma said the three bills brought by the BJP-led Centre are in the interest of the farming community.
President Ram Nath Kovind accepted the resignation of Harsimrat Kaur Badal, who had resigned in protest against three farm sector bills.
The SAD leader said that before, during and after the promulgation of the three ordinances, she had tried her best to persuade the Cabinet to take the actual stakeholders of this decision.
The party's future course of action and whether to stay in the BJP-led National Democratic Alliance (NDA) or not will be decided in a party meeting later, he said.
The minister quit the Narendra Modi government after Shiromani Akali Dal president Sukhbir Singh Badal announced that she would resign in protest against the three agri-marketing Bills.
"I have resigned from Union Cabinet in protest against anti-farmer ordinances and legislation. Proud to stand with farmers as their daughter and sister," Kaur said after quitting Modi government.
Due guidelines would be issued regarding this by the Ministry of Consumers Affairs, Badal said in a statement.