What is "madhyamavyayoga"

'' Madhyamavyayoga'' or Madhyama Vyāyoga ( Hindi: मध्यमव्याbयोग), is a Sanskrit play attributed to Bhāsa. There is no real consensus regarding when the play was written, and it has been dated variously from 475 BCE to the 11th century CE. It has been pointed out that the famous Sanskrit poet Nannaya, who lived around 400 AD, has mentioned Bhasa in his works, and hence Bhasa is dated around 350 AD. However, many scholars disagree, and opine that Bhasa lived around the 7th to 8th centuries CE, placing the play's creation within the same time period. Madhyama Vyayoga focuses on the name confusion between the priest Keshav Das's middle son and the middle Pandava prince Bhima. Also, the reunion of Bhima and Ghatokach as father and son take place. While the characters in this tale are taken from the Mahabharata, this particular incidence is solely a product of Bhasa. Madhyamavyayoga falls under a particular type of Sanskrit drama called Vyayoga.