Raja Sir Nahar Singh, K.C.I.E. (7th November 1855-24th June 1932) was the ruler of princely state of Shahpura from 1870-1932.
He attended the Coronation of the King-Emperor Edward VII and Queen-Empress Alexandra at Westminster Abbey 1903. He was granted a permanent salute of 9-guns in 1925.
He mortgaged the family jewels and private property to construct the irrigation tanks named Nahar Sagar and Umed Sagar to assist his drought-ridden subjects. He established a system of local government, with a large measure of representation, modeled on the London County Council. An energetic and modern ruler, he built schools, hospitals and roads, which transformed his little state out of all recognition.
He was Chairman of Paropkarini Sabha 1893-1932, Member of Mahand Raj Sabha, All India Kshatriya Mahasabha - 1922.
He received Prince of Wales's Medal (1876), Kaiser-i-Hind Medal (1877), Coronation Medal (1902), and Delhi Durbar Medals of 1903 1911. He was created KCIE in 1903 birthday honors.
He among one of the longest ruling monarch.