He was speaking after receiving Hindi, English, Urdu and Gujarati translations of 'Charaiveti, Charaiveti', a book written in Marathi by Naik, at Rashtrapati Bhavan here.
These copies were relased by Vice President Hamid Ansari.
The President said he has known Naik in different capacities and his life is unique.
"He played an instrumental role in introducing the practise of singing of Jana Gana Mana and Vande Matram on the opening and closing days of every Session of Parliament...This reflected his originality of ideas," a press release issued by Rashtrapati Bhavan said.
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Mukherjee said he was struck by the book's title 'Charaiveti! Charaiveti!', which means keep walking or keep marching. The title is both emotive and philosophical, he said.
Among the other dignitaries present on the occasion were Lok Sabha Speaker Sumitra Mahajan, Union Minister M Venkaiah Naidu and Rajya Sabha MP Sharad Pawar.
All these dignitaries including the Vice President spoke highly about Naik, his fight against cancer and about his long years and achievements in public life.
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