There is luk elision in the room of that tense-affix (li) which comes after ām of the liṭ (Perfect Tense).,
आम् is used in forming Periphrastic Perfect ईहांचक्रे 'he endeavoured.' Here, after the verb ईहाम् all tense-affixes are elided, and the Perfect of कृ is added to form its Perfect. Similarly ऊहांचक्रे, ईक्षांचक्रे ॥,