Yechury said that Singh played an important role in the formation of the United Front which came to power after the defeat of the 13-day Atal Bihari Vajpayee government in the confidence vote.
While, H D Deve Gowda became the Prime Minister, "Arjun Singhji, probably never forgave me for the decision by taken CPI(M) central committee in not allowing Jyoti Basu to become the Prime Minister of India", Yechury said.
Yechury said as Human Resource Development minister at the Centre in 2004 the re-establishment of the secular democratic character and content of the Indian educational system was an "audacious task that he undertook admirably".
The article is published in 'Sadbhavana', a souvenir brought out recently by the foundation, also has pieces from leaders across the political hue.
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Former Delhi Chief Minister Sheila Dikshit hailed Singh as one of the tallest leaders of twentieth century India. She said his split with the governance of P V Narsimha Rao was based on principles and "not on his desire for self aggrandizement".
BJP leader and former Madhya Pradesh Chief Minister Sudarlal Patwa described Singh as "my close friend".
He narrated an incident when he had invited Singh as chief guest on the occasion of the birth anniversary of Deen Dayal Upadhyay. "First he hesitated a bit, but then he accepted the invitation and in the speech he criticised in a gentle manner too. He had to face much criticism for participating in the function. I pay my respects to him," said Patwa.
Human Resource Development minister made more enemies owing to his farsighted planning and loyalty to the party.
Antony said Singh was known for his courage of conviction, commitment to secularism and crusaded against divisive and communal politics.
As HRD minister in his first tenure Singh did transform the education system to a more relevant level by introducing many changes to bring it to international standards, former Defence Minister said.
"In his second tenure as minister of HRD he made many enemies owing to his farsighted planning and loyalty to the party (which even affected his health) but he never compromised on his principles and worked relentlessly for the benefit of the poor and minorities," Antony said.
"After several rounds of talk with Shri Laldenga, the insurgent leader, the Mizoram Peace Accord was signed and peace was brought to the State. Lal Thanhawla had to step down as Chief Minister and Laldenga was sworn in as new Chief Minister.
"This was only possible because of the tact, diplomatic skills and insight of Arjun Singh ji. This was a landmark achievement of the times for which I will always remember him," Antony said.