tata: thereafter, munipuṅgavā: eminent ascetics, hṛṣṭā: rejoiced in their hearts, abhipūjya worshipping those celestial beings, prātassavanapūrvāṇi starting with Pratah savanadi (morning ablutions etc), karmāṇi rituals, yathāvidhi as prescribed, cakru: performed.
Thereafter the eminent ascetics, rejoicing in their hearts performed the worship (of celestial beings) and conducted the prescribed rituals starting with morning ablutions etc.