krosantam -- crying out; krishna rama iti -- "Krishna! Rama!"; vilokya -- seeing; sva-parigraham -- Their devotees; yatha -- just as; gah -- cows; dasyuna -- by a thief; grastah -- seized; bhratarau -- the two brothers; anvadhavatam -- ran after.

Hearing Their devotees crying out "Krishna! Rama!" and seeing that they were just like cows being stolen by a thief, Krishna and Balarama began to run after the demon.