This famous quote is attributed to Netaji Subhas Chandra Bose, delivered in 1944 to motivate Indian soldiers. He said 'Tum mujhe khoon do, main tumhe azadi dunga' (Give me blood, I will give you freedom) to rally Indians for the freedom struggle. Bhagat Singh was a martyr but this quote isn't his, and Gandhi was a pacifist who wouldn't have used this language.