Consider the question. Pokhran-II was the series of five nuclear bomb test explosions conducted by India at the Indian Army's Pokhran Test Range in May 1998. It was the second Indian nuclear test; the first test, code-named Smiling Buddha, was conducted in May 1974.

Answer this question based on the passage: when did india conduct the nuclear test at pokhran?
What is the step-by-step reasoning process to arrive at the answer: May 1998?
The relevant information is: Pokhran-II was the series of five nuclear bomb test explosions conducted by India at the Indian Army's Pokhran Test Range in May 1998.