Discovery of the preaching hall the Mallas made in the country of Pava which the Buddha inaugurated.This is Bahuarwa village which sounds similar to the mispronounced Ubbhataka of Buddhist scriptures. This was a preaching hall built by the Mallas of Pava which was consecrated by the Buddha by first staying in it then preaching in it. It was here that Sariputra recited the Sangiti Sutta and the Panini sutta. Bahuarwa village is populated mostly by lower casts with Bhumihar Kashyap gotra of the Malla sub gotra, dominated Parsa village nearby. Bahuarwa is certainly the Ubbhataka or Mallas preaching hall of Buddhist scriptures.

Heres the link of the youtube video of Bahuarwa village:

https://www.youtube.com/watch?v=OGWGS6S0wTU