After leading the march from Parliament, Sonia handed over a memorandum to President Pranab Mukherjee seeking his intervention in checking such incidents which are causing social divide.
"Sinister campaign is being unleashed to create social and communal tension. It is being done with the objective of polarising society and disturbing social harmony," the Congress delegation told the President.
"While the President has spoken, Prime Minister Narendra Modi is silent which clearly indicates his tacit support to such activities," Sonia told reporters after meeting Mukherjee.
"Worse, his council of ministers continue to harbour individuals who are contributing heavily to spreading hate and divisiveness," it added
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"Congress conveys its grave concern at "growing atmosphere of fear, intolerance and intimidation being deliberately created by sections of ruling establish men,"
Following the march, a 125-member delegation, which included party vice president Rahul Gandhi and senior leaders like Ghulam Nabi Azad, Mallikarjun Kharge, met Mukherjee to submit its memorandum and seek his intervention.
They also expressed their gratitude to Mukherjee for speaking out strongly and unequivocally against the force of prejudice, bigotry and intolerance.
Police had severely barricaded the route of the march and deployed a large number of personnel. Many Congress leaders were not allowed to march towards Rashtrapati Bhavan as cops allowed only a small delegation to enter it.