chAlukya emperor, who claimed the throne from his userper regent uncle after fleeing to kolar and allying with bANa and other tribes, defeated all feudatories and neibhors, including a dejected harSha at narmadA, trounced the naval jihaad sent by 636 CE kaliif umar, compannion of muhammad at thAne, who in his last days saw a pallava counter invasion and death at the hands of narasimhavarman.