Virk
According to the Patanjali Bhashya (4.6-114), Ashtadhyayi (l-6-155), Mahabhasya( 4-2-154) and Kashikavarti (1-1-175), Raja Virk Vardhan built forts in:
Kasrud (present-day Mandsor) in central India
Shakil (Sialkot)
Sosaph
Dathaaprastha
Naudipur
Koak
Kandewa
Mula
Pava Datt
Karkar
Virkgary.
According to Thakur Yugendrapal, the Virks are the Vahilkas (they are believed to be the founders of Bahawalpur) who are mentioned in the Mahabharata and who took one-sixth of the income of the King Shalya, who was the king of the Madras and ruled over Madradesa (modern-day Sialkot). In the 4th century AD, they had a powerful kingdom. They were the contemporaries of the Gupta rulers. According to Brij Indra Bhaskar, in 428 AD, the Virk rulers performed a big Yagya near Bayana and constructed a pillar, on which they mentioned themselves as Virks. Rock inscriptions of Yasodharman have been found in Mandsor. Their reign in Malwa came to an end in 462 AD.