NEW DELHI, June 1 (Xinhua) -- Vegetables and milk supplies were hit in Indian cities on Friday, as millions of farmers began their 10-day strike, demanding better prices for their produce.

If the stand-off continues, it is feared that prices of essential commodities, especially veggies and milk, would shoot up in the coming days.

The farmers have come together under the banner of Rashtriya Kisan Mahasangh (National Farmers Federation), a group of 130 farmers organisations.

The federation Friday made it clear that farmers will not supply vegetables or dairy products to the cities for the next 10 days.

Among the demands of the federation are a complete loan waiver, minimum support price for their farm produce, and an assurance of permanent minimum income from the government.

The farmers' federation also assured that agitating farmers won't block any roads, but they will do sit-in protests along 30 major highways in the country.

The major states where the famers were seen protesting during the day include Haryana, Rajasthan, Jammu and Kashmir (all in north), Madhya Pradesh (central), Maharashtra (south western), Karnataka and Kerala (both in south).

Farmers in Punjab were seen throwing vegetables, fresh fruits and spilling milk on streets. Similarly, milk flowed on streets and tomatoes were dumped on a highway near Nashik in Maharashtra, reported the New Delhi Television (NDTV).