Idar State was a princely state that was founded in 1257. Its rulers were Rathore Rajputs. The original rulers of Idar were Kolis of the Bhalsur tribe. The last of the Koli ruler was defeated by the Rathore Rajputs of Pol, the Rathore’s ruled Idar for 12 generations after which they were defeated by the Mughals under Murad Baksh in 1656. Idar then became a part of the Mughal Province of Gujarat. In 1729 Anand Singh and Rai Singh, brothers of the Maharaja of Jodhpur, captured Idar by force. They captured the districts of Idar, Ahmednagar, Morasa, Baad, Harsol, Parantij and Vizapur. Five other districts were made tributaries of their new state. The state was soon annexed by the Marathas under Damaji Gaekwad in 1753 and Anand Singh was killed in battle. When Rai Singh got to know about his brother’s death he gathered a force and once again captured Idar; he placed Anand Singh’s son on the throne and became his guardian. After Rai Singh’s death in 1766, the Marathas once again threatened Idar upon which Rao Seo Sinh, son of Anand Singh, agreed to hand over the districts of Parantij and Vizapur to the Peshwa and Morasa, Baad and Harsol to the Gaekwads.
The state’s first postal stamps were issued from 1932 to 1943 under the reign of Maharaja Himmat Singhji who ruled between 1931 to 1960.
The first stamps were in various shades of green with white or colored panels. They were issued in booklet panes of four with the stamps imperforated on one or two sides; they were gummed.
* Text from Wikipedia and feudatory-states-stamps.com