As per provisions of Article 244, total ten Autonomous District Councils (ADCs) are there to safeguard the rights of the tribal population in Assam, Meghalaya, Tripura and Mizoram, under 6th Schedule. Which of the following states is having only one ADC ?
1) Assam
2) Meghalaya
3) Tripura
4) Mizoram
3) Tripura