As per state census 2011, which of the following is the least populous state of India?

Sikkim

The correct answer is Option (1) → Sikkim

As per the 2011 census, Sikkim was the least populous state in India.

• Sikkim is a northeastern state known for its stunning Himalayan mountains and rich cultural heritage.
• Tamil Nadu, Kerala, and Odisha are all significantly more populous states compared to Sikkim.