He also dismissed the allegations as "baseless" that the NDA government was against the upliftment of the backward community.
"It is the moral responsibility of the political parties to ensure that no caste or communal violence takes place anywhere," Mr Singh told reporters.
The Supreme Court had on March 20 "diluted" the provisions of the Scheduled Castes and the Scheduled Tribes (Prevention of Atrocities) Act, ruling that the government servants should not be arrested without prior sanction and private citizens, too, be arrested only after an inquiry under the law.
Opposing the verdict, several Dalit organisations called for a 'Bharat bandh' on Monday.
Speaking to reporters outside parliament, Union minister Ravi Shankar Prasad noted, "The Centre was not a party in the proceedings at all. And therefore, on behalf of the Ministry of Social Justice, a very comprehensive review has been filed (against the dilution of the SC/ST Act).
"And the Government of India with great respect does not agree with the reasoning given by the Supreme Court in the matter," he said.
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