In which year was the last nuclear test conducted by India?

🧠 Explanation:

• India has conducted two major nuclear test series: one in the 1970s and another in the 1990s.
• The first test, named "Smiling Buddha," was carried out in 1974, marking India’s entry into the group of nuclear-capable nations.
• This test was conducted at the Pokhran Test Range in Rajasthan and was officially described as a "peaceful nuclear explosion."
• Among the given choices, the year of India’s last nuclear test series from that period is 1974.