He observed (all) these vows for eighteen years and when the eighteenth year was complete, Savitri was pleased with him.
एतेन नियमेनासीद् वर्षाण्यष्टादशैव तु। पूर्णे त्वष्टादशे वर्षे सावित्री तुष्टिमभ्यगात्॥