Thousands of farmers, mostly from Punjab, Haryana and western Uttar Pradesh, have been camping at the Delhi border points for over 100 days, demanding the repeal of farm laws.
The 136-km-long Western Peripheral Expressway, also known as Kundli-Manesar-Palwal (KMP) Expressway is facing a five-hour blockade, called by farmers to mark the 100th day of their protest against farm laws.
The arrogance of power has made the government sitting in New Delhi "blind and deaf" to the suffering of millions of farmers in the country, the SP leader told the gathering.
Security has been tightened in both Haryana and Punjab with personnel of the government railway police and the state police forces being deployed, officials said.
Earlier, Tharoor and the six journalists were booked by Noida Police for alleged sedition, among other charges, over the violence during the farmers' tractor rally in Delhi.
On the farm sector and the ongoing protest, Modi said, "MSP was there. MSP is there. MSP will remain in the future. Affordable ration for the poor will continue. Mandis will be modernised".
As per farmer unions, the 'chakka jam' includes blocking national and state highways between 12 noon and 3 pm to protest the internet ban in areas near their agitation sites.
Farmer unions had on Monday announced a countrywide 'chakka jam' on February 6 during which they would block national and state highways between 12 noon and 3 pm.
Protesting farmers owing allegiance to different farmers' bodies blocked state and national highways at several places on Saturday, causing inconvenience to commuters.