SB 10.70.24
ye ca dig-vijaye tasya
sannatim na yayur nrpah
prasahya ruddhas tenasann
ayute dve girivraje
Translation:
Twenty thousand kings who had refused to submit absolutely to Jarasandha during his world conquest had been forcibly imprisoned by him in the fortress named Girivraja.
Purport:
Srila Visvanatha Cakravarti points out that these kings refused the payment of tribute and other forms of submission to Jarasandha. Also, there is a well-known account in the Mahabharata and other literatures that Jarasandha desired to worship Maha-bhairava by offering him the lives of one hundred thousand kings in sacrifice.