Tejoo Peer (तेजू पीर) was a warrior of Sinwar Jat clan from village Pichakarae Tal in Sardarshahar tehsil of Churu district in Rajasthan. He was killed in fighting with Lanhad Khan in 12-13th century. He was a strong follower of Sufi Sant Baba Shekh Fareed. Hence known as Tejoo Peer. Khojer, Pirer, Ratusar, Kalwasia, Shekhsar, Pichakarae Tal and Giddhasar were under Sinwar Jat republic.
According to Census-2011 information: With total 412 families residing, Kalwasiya village has the population of 2443 (of which 1192 are males while 1251 are females).
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