Complex sentence: In 1973, he moved to India and stayed on for another 10 years, during the time he met his guru Vimalananda and joined, Tilak Ayurveda Mahavidyalaya, an Ayuvedic college in Pune.
Split into simpler sentences: In 1973, he moved to India and stayed on for another 10 years. During this time he met his guru Vimalananda and joined Tilak Ayurveda Mahavidyalaya, an ayuvedic college in Pune.