Question: How are A.C.N. Nambiar and Subhas Chandra Bose similar? 

Context paragraphs:
Netaji Subhas Chandra Bose International Airport: Netaji Subhas Chandra Bose International Airport (IATA: CCU, ICAO: VECC) is an international airport located in Kolkata, West Bengal, India, serving the Kolkata metropolitan area.  It is located approximately 17 km from the city center.  The airport was earlier known as Dum Dum Airport before being renamed after Netaji Subhas Chandra Bose, a prominent leader of the Indian independence movement.

A. C. N. Nambiar: Arathil Chandeth Narayanan Nambiar (1896–1986) was an Indian Nationalist and a friend and colleague of Subhas Chandra Bose.  Originally from Kerala (he was born in Thalassery), Nambiar spent much of his life serving the Indian independence movement in Europe.

Sugata Bose: Sugata Bose (born 7 September 1956) is an Indian historian and politician who has taught and worked in the United States since the mid-1980s.  His fields of study are South Asian and Indian Ocean history.  Bose taught at Tufts University until 2001, when he accepted the Gardiner Chair of Oceanic History and Affairs at Harvard University.  Bose is also the Director of the Netaji Research Bureau in Kolkata, India, a research center and archives devoted to the life and work of Bose's great uncle, the Indian nationalist, Subhas Chandra Bose.  Bose is the author most recently of "His Majesty's Opponent: Subhas Chandra Bose and India's Struggle against Empire" (2011) and "A Hundred Horizons: The Indian Ocean in the Age of Global Empire" (2006).

Netaji Subhas Chandra Bose: The Forgotten Hero: Netaji Subhas Chandra Bose: The Forgotten Hero is a 2004 Indian biographical war film, written and directed by Shyam Benegal.  The film starred an ensemble cast of Sachin Khedekar, Kulbhushan Kharbanda, Rajit Kapur, Arif Zakaria, and Divya Dutta, among others.  The film depicts the life of the Indian independence leader Subhas Chandra Bose in Nazi Germany: 1941–1943, and In Japanese-occupied Asia 1943–1945, and the events leading to the formation of Azad Hind Fauj.

Leonard A. Gordon: Leonard Abraham Gordon is a historian of South Asia, especially of Bengal, whose 1990 book "Brothers Against the Raj: A Biography of Indian Nationalist Leaders Sarat and Subhas Chandra Bose" is considered the definitive biography of Subhas Chandra Bose.

All India Forward Bloc: The All India Forward Bloc (AIFB) is a left-wing nationalist political party in India.  It emerged as a faction within the Indian National Congress in 1939, led by Subhas Chandra Bose.  The party re-established as an independent political party after the independence of India.  It has its main stronghold in West Bengal.  The party's current Secretary-General is Debabrata Biswas.  Veteran Indian politicians Sarat Chandra Bose (brother of Subhas Chandra Bose) and Chitta Basu had been the stalwarts of the party in independent India.

Azad Hind Radio: Azad Hind Radio was a propaganda radio service that was started under the leadership of Netaji Subhas Chandra Bose in Germany in 1942 to encourage Indians to fight for freedom.  Though initially based in Germany, its headquarters was shifted to Singapore and later to Rangoon following the course of the war in South East Asia.  Following Netaji's departure to South East Asia, the German operations were continued by A.C.N. Nambiar, the head of the Indian Legion in Germany and later Ambassador of the Arzi Hukumate Azad Hind in Germany.

Subhas Chandra Bose: Subhas Chandra Bose (23 January 1897 – 18 August 1945) was an Indian nationalist whose defiant patriotism made him a hero in India, but whose attempt during World War II to rid India of British rule with the help of Nazi Germany and Imperial Japan left a troubled legacy.  The honorific Netaji (Hindustani: "Respected Leader"), first applied in early 1942 to Bose in Germany by the Indian soldiers of the "Indische Legion" and by the German and Indian officials in the Special Bureau for India in Berlin, was later used throughout India.

The Springing Tiger: The Springing Tiger is a historical account of the Indian National Army published in 1959 by Col Hugh Toye.  The book was published in London by Cassell Publishers, and is considered one of the first Sympathetic Western accounts of the army.  Toye worked as an intelligence officer in World War II in Burma, and was tasked with interrogating captured soldiers of the INA by the CSDIC(I).  The book is provided with a foreword by Phillip Mason, who in 1946 was the Secretary of the War department in India.  The book describes in detail the formation of the INA under the auspices of the F Kikan of Japanese intelligence through the collapse and subsequent revival of the army under Subhas Chandra Bose, its role in the Battles of Imphal and Kohima and the subsequent collapse in the face of Allied Burmese offensive before ending with the death of Subhas Chandra Bose.

Netaji Subhas Chandra Bose Stadium: Netaji Subhas Chandra Bose Stadium is a multi-purpose stadium in Hailakandi, Assam.  The ground is mainly used for organizing matches of football, cricket and other sports.  The ground is named after India freedom fighter Netaji Subhas Chandra Bose.  The ground is main used for football but has hosted three matches of Vijay Merchant Trophy one in 2008 and rest in 2013 as well as one CK Nayudu Trophy in 2005.

Supporting paragraphs: A. C. N. Nambiar Subhas Chandra Bose
Answer: Indian Nationalist