[3] Balai Dey was born on 11 October 1946 in Kotalipara, Gopalganj, Bengal Presidency, during the ending stage of British rule in India.

During his school days, he began playing football and started his youth career as a goalkeeper for Khulna Sporting Club at the age of fifteen.

Two legendary Dhaka Mohammedan players Kabir Ahmed and Amir Jang Ghaznavi played a crucial role in this transfer.

On the other hand, Calcutta Football League giants East Bengal was little more concerned about the approval of FIFA's international clearance as he was a foreigner.

In 1965, Jyotish Guha managed East Bengal took him as a foreign recruit by surprise where Peter Thangaraj was prominent goalkeeper of the team.

[14] Amal Dutta was influential nurturing talents including Balai Dey and others like Monoranjan Bhattacharya, Satyajit Chatterjee.

[19] During the national camp in Bombay, Dey had to rush to Nowgon, Assam, in a few hours' notice after receiving an SOS from the Bengal team management and participated in the Santosh Trophy.

[9] After Dey's brilliant performance with Dhaka Mohammedan in tournaments in Karachi, Lahore, Peshawar and Multan, he got a chance for trial in the Pakistan national team.

[2] After the memorable performances against Singapore and Sri Lanka, Dey and Zahirul Haque from East Pakistan earned a spot in the national squad.

[1] He competed in the Merdeka Cup in Malaysia and the Singapore Friendship Tournament, when Jarnail Singh was the national team head coach.

When the East Bengal team paid a visit to the great man, he told me that initially people were upset that I left Pakistan to move to India.

I couldn't control my tears when Bangabandhu said these words.Dey's twin brother Kanai Dey was also a football goalkeeper who played in Khulna First Division League.

Balai Dey got the opportunity to play for the Pakistan national team during a tour of the Soviet Union in 1965, but due to family constraints, he moved to Calcutta, India on January 3, 1965, and settled in Liluah, Howrah.