Explanation:

About Pradhan Mantri Gram Sadak Yojana (PMGSY):
Pradhan Mantri Gram Sadak Yojana (PMGSY) was launched on 25th December, 2000 as a Centrally Sponsored Scheme with the objective to provide all-weather road connectivity to all eligible unconnected habitations in rural areas of the country.
The programme envisages connecting all eligible unconnected habitations with a population of 500 persons and above (as per 2001 Census) in plain areas and 250 persons and above (as per 2001 Census) in Special Category States namely Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, Tripura, Himachal Pradesh, Jammu & Kashmir and Uttarakhand, Tribal (Schedule-V) areas, the Desert Areas (as identified in Desert Development Programme) and in Select Tribal and Backward Districts (as identified by the Ministry of Home Affairs/Planning Commission). For most intensive Integrated Action Plan (IAP) blocks as identified by Ministry of Home Affairs the unconnected habitations with population of100 and above (as per 2001 Census) are eligible to be covered under PMGSY.