O King Parīkṣit! Just as a hunter becomes like a deer to kill the deer, so Indra served Diti with deceit, in order to find a fault in the vow of Diti who was fixed in her vow. Indra desired to find some fault in her vow. This however was his misconception. Since whatever faults exist are nullified by remembering and glorifying Viṣṇu, her vow should also become faultless, even if there was a fault. It is said: yasya smṛtyā ca nāmoktyā tapo-yajṣa-kriyādīṣu nūnaṁ sampūrṇatām eti sadyo vande tam acyutam I offer my obeisances unto the infallible Lord, because simply by either remembering him or chanting his name all penances, sacrifices or fruitive activities become perfect. Skanda Purāṇa mantratas tantrataś chidraṁ deśa-kālārha-vastutaḥ sarvaṁ karoti niśchidram anusaṅkīrtanaṁ tava There may be discrepancies in pronouncing the mantras and observing the regulative principles, because of discrepancies in regard to time, place, person and paraphernalia. But when your name is chanted, everything becomes faultless. SB 8.23.16 It will be said later that Indra would not find any fault in her performance of vows. Mahāpuruṣa-pūjāyāḥ siddhiḥ kāpy ānuṣaṅgiṇī: liberation is a secondary result of worship of the Lord. (SB 6.18.73) Jihmaḥ means deception. The hunter disguises himself as a deer to cheat the deer. Similarly Indra disguised himself as a devoted servant to cheat Diti.