— having come, approaching; — the pact, the covenant (samaya); — having given, having granted; — by Bhairava; — impelled, urged on; — they grant, they bestow; — supreme, highest; — attainment, perfection (siddhi); — the fruit, the result; — whatever; — or; — desired, wished for
Having come and made the pact, impelled by Bhairava, they grant the supreme attainment, or whatever fruit is desired.