Question: What is the birthdate of this Indian nationalist whose defiant patriotism made him a hero in India and for which Netaju Bhawan was maintained as a memorial to him?

Context articles: The Indian War of Independence (book)
Niedermayer–Hentig Expedition
Hemchandra Kanungo
Netaji Bhawan
Shubhashish Bhutiani
Vaishno Devi
Special Bureau for India
Bande Mataram (Paris publication)
The Indian Struggle
Subhas Chandra Bose

The Indian War of Independence is an Indian nationalist history of the 1857 revolt by Vinayak Damodar Savarkar that was first published in 1909.
 The book, initially written in Marathi, was penned by Savarkar in response to celebrations in Britain of the 50th anniversary of the 1857 Indian uprising with records from India Office archives and the whole project received support from Indian nationalists in Britain including the likes of Madame Cama, V.V.S. Iyer and M.P.T. Acharya, as well as Indian students who had dared not show their support or sympathy for India House openly.
 Published during Savarkar's stay in London at the India House, the book was influenced by histories of the French Revolution and the American Revolution, as much as it sought to bring the Indian movement to public attention in Britain as well as to inspire nationalist revolution in India.
The Niedermayer–Hentig Expedition was a diplomatic mission to Afghanistan sent by the Central Powers in 1915–1916.
 The purpose was to encourage Afghanistan to declare full independence from the British Empire, enter World War I on the side of the Central Powers, and attack British India.
 The expedition was part of the Hindu–German Conspiracy, a series of Indo-German efforts to provoke a nationalist revolution in India.
 Nominally headed by the exiled Indian prince Raja Mahendra Pratap, the expedition was a joint operation of Germany and Turkey and was led by the German Army officers Oskar Niedermayer and Werner Otto von Hentig.
 Other participants included members of an Indian nationalist organisation called the Berlin Committee, including Maulavi Barkatullah and Chempakaraman Pillai, while the Turks were represented by Kazim Bey, a close confidante of Enver Pasha.
Hemchandra Kanungo Das (1871 – 1951) was a Bengali Indian nationalist and a member if the Anushilan samiti.
 Kanungo travelled to Paris in 1907, where he learnt the technique of assembling Picric acid bombs from exiled Russian revolutionaries.
 Kanungo's knowledge was disseminated throughout Indian nationalist organisations in the Raj and abroad.
 In 1908, Kanungo was one of the principal co-accused with Aurobindo Ghosh in the Alipore Bomb Case (1908–09).
 He was sentenced to transportation for life in the Andamans, but was released in 1921.
Netaji Bhawan or Netaji Bhavan ("Netaji's Residence") is a building maintained as a memorial and research center to the life of the Indian nationalist "Netaji" Subhas Chandra Bose in Kolkata.
 The house, built by Bose's father in 1909, is owned and managed by the Netaji Research Bureau and includes a museum, archives and library.
 The Bureau is run by Sugata Bose and his mother.
 The building is on Lala Lajpat Rai Sarani in Kolkata.
Shubhashish Bhutiani (born 20 July 1991) is an Indian film director, actor, screenwriter and script writer.
 He made his directorial debut in Bollywood with the film "Mukti Bhawan" based on relationships and family.
 He won National Film Award – Special Jury Award / Special Mention (Feature Film) for directing Mukti Bhawan at 64th National Film Awards.
Vaishno Devi, also known as Mata Rani, Trikuta and Vaishnavi, is a manifestation of the Hindu Mother Goddess of MahaKali, MahaSaraswati and MahaLakshmi.
 The words "maa" and "mata" are commonly used in India for "mother", and thus are often used in connection with Vaishno Devi.
 Vaishno Devi Mandir is a Hindu temple dedicated to the Hindu Goddess, located in Katra at the Trikuta Mountains within the Indian state of Jammu and Kashmir.
 The Temple or Bhawan is 13.5 km from Katra and various modes of transportation are available from katra to Bhawan, including Ponies, Electric vehicles and paalkhis operated by 2 or 4 persons.
 Helicopter services are also available up to Sanjichhat, which is 9.5 km from Katra.
Sonderreferat Indien, variously translated into English as, Special Bureau for India, Special India Bureau, or Section for Indian Affairs, was a section or bureau established within the Information Department of the Foreign Office of Nazi Germany in late spring 1941 in response to a proposal or memorandum written by the Indian nationalist Subhas Chandra Bose, who had arrived in Germany in early April of that year.
 The main function of the bureau was to aid Bose in his work, to liaise with Bose, and to mobilize an Indian Legion, comprising Indian POWs captured by Erwin Rommel's Afrika Korps, to aid the German military in a future land invasion of India.
 A military "intervention" in India, one of the two major points in Bose's proposal, had at first received a lukewarm response from the German Foreign Minister Joachim von Ribbentrop, but shortly afterwards it received the unexpected support of Adolf Hitler, who saw the battle for India as the natural aftermath of a successful German invasion of Russia and a chance to deliver the ultimate blow to the British Empire.
The Bande Mataram was an Indian nationalist publication from Paris begun in September 1909 by the Paris Indian Society.
 Founded by Madam Bhikaji Cama, the paper along with the later publication of "Talvar" was aimed at inciting nationalist unrest in India and sought to sway the loyalty of the Sepoy of the British Indian Army.
 It was founded in response to the British ban on Bankim Chatterjee's nationalist poem of Vande mataram, and continued the message of the journal "Bande Mataram" edited by Sri Aurobindo and published from Calcutta, and "The Indian Sociologist" that had earlier been published from London by Shyamji Krishna Varma.
The Indian Struggle, 1920–1942 is a two-part book by the Indian nationalist leader Netaji Subhash Chandra Bose that covers the 1920–1942 history of the Indian independence movement to end British imperial rule over India.
 Banned in India by the British colonial government, "The Indian Struggle" was published in the country only in 1948 after India became independent.
 The book analyses a period of the Indian independence struggle from the Non-Cooperation and Khilafat Movements of the early 1920s to the Quit India and Azad Hind movements of the early 1940s.
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.