Origin of Indian freedom strike in Bombay 1946
The Royal Indian Navy mutiny (also called the Bombay Mutiny) encompasses  a total strike and subsequent mutiny by Indian sailors of the Royal  Indian Navy on board ship and shore establishments at Bombay (Mumbai) harbor on 18 February 1946. From the initial flash point in Bombay, the  mutiny spread and found support throughout British India, from Karachi  to Calcutta and ultimately came to involve 78 ships, 20 shore  establishments and 20,000 sailors.
Leading Signalman M.S Khan and Petty Officer  Telegraphist Madan Singh were unanimously elected President and  Vice-President respectively. The strike found immense support among the Indian population, already gripped by the stories of the Indian National Army.
The  actions of the mutineers was supported by demonstrations which included  a one-day general strike in Bombay. The strike spread to other cities,  and was joined by the Royal Indian Air Force and local police forces. 
Naval  officers and men began calling themselves the "Indian National Navy"  and offered left-handed salutes to British officers. At some places,  NCOs in the British Indian Army ignored and defied orders from British  superiors. In Madras and Pune, the British garrisons had to face revolts  within the ranks of the Indian Army. Widespread rioting took place from  Karachi to Calcutta.