Which of the following diseases has been eradicated from India?

Correct option is A

Polio has been eradicated from India, with the last reported case in 2011 and the country declared polio-free by WHO in 2014. This was achieved through consistent immunization campaigns like Pulse Polio and intensive surveillance. Eradication means zero cases with no transmission, unlike elimination or control which still have limited cases.
Explanation of each option:
· (a) Polio: Correct. India was certified polio-free by WHO after consistent absence of cases since 2011 and massive vaccination coverage.
· (b) HIV/AIDS: Still present in India. Though prevalence has reduced due to awareness and ART therapy, it has not been eradicated.
· (c) Leprosy: Leprosy has been eliminated as a public health problem (less than 1 case per 10,000), but not fully eradicated.
· (d) Tetanus: Neonatal tetanus has been eliminated, but tetanus still exists in non-neonatal forms. Hence, not eradicated.