Rajkot is the 4th largest city in the state of Gujarat, India. Rajkot is the 28th urban agglomeration in India, with a population more than 1.43 million as on 2008.[5][6] Rajkot is ranked 22nd in The world�s fastest growing cities and urban areas from 2006 to 2020.[7] Rajkot is a city of Gujarat state in India and administrative headquarters of the Rajkot District, located on the banks of the Aji River and Niari River. Rajkot was the capital of the then Saurashtra state from 15 April 1948 to 31 October 1956 before merging in bilingual Bombay State on 1 November 1956. Rajkot was merged into Gujarat State from bilingual Bombay state on May 1, 1960.