His radical outlook and activities alarmed the British Government and Bose was imprisoned in 1940 A.D. His fragile health led the Government to release him from the jail and Bose remained under house arrest. Bose left home in 1941 and went outside India in disguise. Travelling through Afghanistan and reaching Germany, Bose started anti-British propaganda abroad. In Berlin, he organized Indian National Army with the help of Indian prisoners in Germany. Later on, he shifted his venue to Singapore.
His arrival at Singapore galvanized the process of Indian National Army (I.N.A. or Azad Hind Faun) formed by Raps Bihar Bose under the command of Mohan Singh. However, the high-handedness of Mohan Singh made him a prisoner at the hands of Raps Bihar Bose. With his arrival, he was given the charge of the organisation of the I.N.A.
From Tokyo in 1943 Subhas Chandra delivered his first speech for Indians who were fighting against the British. He was also welcomed by the members of the Indian Independence League; Now Raps Bihar offered the leadership of the Indian Independence League in East Asia to Subhas. By his commanding leadership, he became popular as Netaji.
Netaji Subhas set up a provisional Government of India at Singapore. This Government was recognized by the countries like Japan, China, Malaya, Thailand, Indo-China, Java, Sumatra etc. Japan also offered the island of Andaman and Nicobar for strengthening the provisional Government for India. A leader out and out Subhas Chandra Bose commanded the I.N.A. and at Singapore declared war against Great Britain and her allies. He gave a clarion call to the soldiers: 'Give me blood and I would