An Uttar Pradesh State Road Transport Corporation bus was set ablaze by agitating Gujjars at Kasna in Greater Noida on Monday.
Police fired in the air to disperse the protestors in the area.
At Noida, the main Sector 14 A border road was blocked for over three hours by the Gujjars.
The protestors blocked rail traffic at Dadri area. Several trains were held up at Dadri, Ajaibpur and Dankore railway stations.