A development block raised into a district: the Tropic of Cancer crosses Serchhip in Mizoram
Background
Central road work being cleared in the hills has brought Mizoram's district map back into view. Serchhip, which sits in the central part of the State, is the district the Tropic of Cancer passes through. Its own administration also calls it the smallest district in Mizoram. The district came into being on 15th September 1998, out of what had until then been a Rural Development Block. Champhai district adjoins it on the east. Few districts anywhere are made by raising a development block, and it shows how recently most of Mizoram's districts were drawn. The pairing worth keeping is short: the Tropic of Cancer and Serchhip.
In plain words
Tropic of Cancer The northern tropic — The line of latitude marking how far north the sun can stand overhead.
Rural Development Block Community development block — A rural administrative unit below the district, used for development work.