The farmers have come from different corners of the country, including Andhra Pradesh, Gujarat, Madhya Pradesh, Maharashtra, Tamil Nadu, West Bengal and Uttar Pradesh on everything from trains to tractors.

Delhi Traffic Police is tweeting live updates on the route taken by the farmers and asked commuters to stay updated. "Around 1,000 traffic personnel have been deployed in all these routes to plan diversions and to keep the traffic smooth," Joint Commissioner (Traffic) Alok Kumar said.

The sprawling Ramlila ground turned into a sea of red as farmers wearing caps and carrying flags gathered, raising slogans like "Ayodhya nahi, karzi maaf chahiye (We don't need Ayodhya but debt waiver".

"I took a loan of Rs 3 lakh, three years ago and it is very difficult to pay it back. I want my loan to be waived off," 60-year-old Bhramar Vishi from Odisha, who is the sole breadwinner in his family of five, told NDTV.

"The kind of vegetables and beans we grow there... there is not enough market for it. What we do manage to sell is sold at Rs 1 or Rs 2 per kg. How will that be enough?" 65-year-old Urmila Naiya, who is among 78 farmers from Sunderbans in West Bengal who have travelled for 30 hours on a train, said.

About 1,200 farmers from Tamil Nadu reached the national capital in the early hours of Thursday carrying skulls of two of their colleagues who had committed suicide, a leader of the National South Indian River Interlinking Agriculturalists Association said. The group threatened to march naked if they are not allowed to go to parliament today.

Five gurdwaras in Delhi offered to let many of the farmers stay for the night, Atul Anjaan, one of the leaders of the movement said. However, most of the farmers spent the night at Ramlila Maidan in tents, he said.

The Delhi Jal Board will provide them with water tanks and Aam Aadmi Party legislators will give food packets. AAP volunteers have put up scores of tents at the Anand Vihar station for farmers who arrived there and are also providing snacks and water to them, he added.