India conducted its first nuclear test in which year

India carried out its first nuclear test in 1974 at Pokhran in Rajasthan. The test was code named Smiling Buddha and made India the sixth country to test a nuclear device. Although India called it a peaceful nuclear explosion the test had clear military significance. The event led to strong reactions worldwide with many countries imposing sanctions and restrictions. It also marked the start of a regional nuclear race as Pakistan intensified its own program in response. The 1974 test changed South Asian geopolitics and established India as a nuclear capable state. Hence the correct answer is option B.