Thikana Heerwa fortress was built by Thakur Pahar Singh in 1763, Thakur Sahib died in 1771 and was succeeded by his son Inder Singh who ruled Heerwa, Sigra and Balaria.
He married Thakuranisa Kesar Kanwar Baisa (the younger daughter) of the Chief of Thikana Dobri Palace (Rian), and his wife, a Kanawat princess of Amarpura in Mewar, and had issue, three daughters.
The Title of the rulers "Tazim Naresh Maharaja Shri" (The Great Hon'ble King) is derived from the Urdu word Tazeem (Tazim) meaning Respect or Honour, which describes their special position as a Dual Tazimi Thikana in the Princely State of Jodhpur whom the Jodhpur Maharaja receives in Darbar by rising from throne, taking steps, and hugging, and are exempted from appearance in Courts of Law in Civil Cases; and Naresh meaning "King" or "Maharaja" or "Raja".
Maharaja Mangal Singh Prabhakar was the 6th Maharaja of Alwar (1874/1892) born 1859, adopted from Thikana Thana, installed upon the gaddi on 14 December 1874, in preference to Kunwar Lakhdir Singh of Bijwar, Maharaja cr.1889, G.C.S.I., married (amongst others),