[3] The origin of the name Vaishishthi is attributed to the fact that this area was the ashram of Rishi (sage) Vashistha in ancient period.

But gradually the area became inhabitable, for want of recorded and reliable history it cannot, with any degree of certainty, be said how the district came to be known by its present name on account of the original habitation (Basti) having been selected by the Kalhans Raja Udai Raj Singh as a seat of his Raj, an event which probably occurred in the 16th century.

[4] Maharaja Kesri Singh was the last ruler of Kalhans dynasty based at Chaukhara.

[5] In the freedom struggle of 1857, about 250 martyrs of Amorha state were hanged by the British Government from peepal trees located at Chhawani.

On the south, the Ghaghra river near Amorha Khas previously known as Amorha Province or State of Raja Zalim Singh separates it from the Faizabad and newly created district named Ambedkar Nagar.