Complex sentence: But Bali was insisting that he cannot stop Dhaanam to a young Brahmachari Brahmin, Sukrayacharya changed his form to that of a bee and went into the nossle of the Kamandala blocking water flow.
Split into simpler sentences: But Bali was insistent that he cannot stop Dhaanam to a young Brahmachari Brahmin. Sukrayacharya, then changed his form to that of a bee and went into the nossle of the Kamandala blocking water flow.