Gandhi, while condemning the violence against children by the mobs, said there was no bigger cause to justify violence against children.
Congress President Rahul Gandhi in a tweet on the incident slammed the BJP which forms the government both in Haryana where the attack took place, as well as the central government.
Meanwhile, Haryana Minister Ram Bilas Sharma told ANI that the administration did not expect that the people protesting over Padmaavat would attack a school bus.
The Haryana Police on Thursday arrested 18 people in connection with the attack on a school bus in Gurugram yesterday by some groups protesting against the released of movie Padmaavat.
Sandhu said that the movie was being screened in 33 cinema halls in nine cities, including seven cinema halls in Gurugram, 11 in Faridabad, three in Hisar, one each in Sirsa and Fatehabad, six in Rohtak, two in Jhajjar and one each in Sonipat and Rewari.More news: Razzies 2018 nominations: Tom Cruise, Johnny Depp up for 'Worst Actor' trophy
More news: Grammy Awards 2018: Ceremony facing cash crunch
More news: IOS 11.3 Books app confirms Apple Books Store overhaul
Congress's communications in-charge Randeep Surjewala had termed the attack as "unacceptable" and "reprehensible" that endangered the lives of children.
"Terrified children cry inconsolably and anarchy prevails".
Violent protestors also torched a bus in Sohna, where they pelted a fire tender with stones and forced it back when it came to douse the fire, local officials said.
The Haryana government has said that it would implement the Supreme Court order for providing security to ensure the movie's screening. "One other teacher and I chose to stay on the bus until the last stop", said Bhargava, adding that some students also kept asking how their parents would return home from work in such an atmosphere.
With Sanjay Leela Bhansali's film "Padmaavat" to be released tomorrow, protests led by Rajput communities and other fringe outfits took a violent form in various parts of the country. The protesters allegedly belonged to Rajput group Karni Sena.