..... was an Indian businessman and philanthropist. He received the Padma Bhushan award in 1956.He attended Presidency College at Chennai, where he became friendly with Sarvepalli Radhakrishnan, a model teacher who later on became President of India.

The question pertains to the recognition of Indian philanthropists and their contributions to society. Algaappa Chattier was a prominent Indian businessman and philanthropist who made significant contributions to various fields, including education and social welfare. He was awarded the Padma Bhushan, one of India's highest civilian awards, in 1956 for his contributions to society.

Algaappa Chattier's educational background is also noteworthy. He attended Presidency College in Chennai, which is a prestigious institution known for producing many notable figures in Indian history. During his time at Presidency College, he formed a close friendship with Sarvepalli Radhakrishnan, who later became a renowned philosopher and the second President of India. This connection highlights the importance of Algaappa Chattier's role in the intellectual and social circles of his time.

The Padma Bhushan is awarded by the Government of India to individuals who have made significant contributions to the nation in various fields such as arts, education, industry, and social service. The award is a recognition of the individual's dedication and service to the country. Algaappa Chattier's receipt of this award underscores his significant contributions to Indian society.

Understanding the context of Indian philanthropists and their contributions is crucial for students preparing for competitive examinations such as the UPSC, SSC, and Bank PO. These examinations often include questions that test the candidate's knowledge of historical figures, their contributions, and the awards they have received. Familiarity with such information helps in answering questions accurately and efficiently.

In summary, the question tests the recognition of Algaappa Chattier as an Indian philanthropist who received the Padma Bhushan award and had a connection with Sarvepalli Radhakrishnan. This knowledge is essential for students preparing for competitive examinations and for those interested in the history of Indian philanthropy and its impact on society.