As per Census 2011, which of the following states has the highest percentage of Scheduled Tribe population in the country? 

Correct option is D

As per the 2011 census, Mizoram had the highest percentage of Scheduled Tribe (ST) population in India, at 94.8%. Lakshadweep, a Union Territory, also had a high percentage of ST population at 94.8%. 

Here are the ST population percentages for some other states:

• Nagaland: 86.5%
• Meghalaya: 86.1%
• Arunachal Pradesh: 68.8%
• Madhya Pradesh: 21.1%
• Rajasthan: 13.5%
• Maharashtra: 10.1%
• Uttar Pradesh: 0.6%