Farmers said the government should have formed a committee of farmers and others before the laws were enacted by Parliament.
The farmer leaders said they are not willing to participate in any proceedings before a committee appointed by the Supreme Court, but a formal decision on this will be taken by the Morcha.
"The cancellation of the UK prime minister's visit because of all these efforts is surely a big victory for farmers," the statement said.
'If the Delhi Police has some issues over law and order on Republic Day, they can sit with Sankyukt Kisan Morcha and tell about alternatives routes for the tractor rally'
The letter by 'Sanyukt Kisan Morcha', which represents farmer bodies mostly from Punjab, comes against the backdrop of the government holding talks with several farmers organisations from different states who the Centre claimed have extended their support to the new agriculture laws.
Farmer leader Abhimanyu Kohar, who is a member of Sankyukt Kisan Morcha, said on Sunday that farmers have waterproof tents but they cannot protect them from biting cold and waterlogging.
Addressing a press conference at Singhu Border in New Delhi, farmer leader Balbeer Singh Rajewal said that farmers never demanded the Supreme Court form a committee to resolve the impasse, alleging the central government was behind this development.
Reading out a reply to the government's talks offer during a press conference, farmers leaders said that they are ready for dialogue with an open mind if they get a concrete proposal, but made it clear they will not accept anything less than a complete repeal of the three agriculture laws and legal guarantee for minimum support price (MSP).