Nagapattinam district

Nagapattinam district is the only district in India to be discontinuous or separated  into two parts. This district is located on Tamil Nadu, India. Nagapattinam district was carved out by dividing the Thanjavur district on 1991, October 19.In 2006 the Ministry of Panchayati Raj named Nagapattinam district one of the country's 250 most backward districts (out of a total 640 Indian districts). 

Nagapattinam district is one of the six districts of 32 districts in Tamil Nadu currently receiving funds from the Backward Regions Grant Fund Programme (BRGF).According to 2011 census of India, Nagapattinam district had a population of 1,616,450 with a sex-ratio of 1,025 females for every 1,000 males, much above the national average of 929. 
Reference