Complex sentence: During his lifetime he had founded the Jairambhai Dayabhai Chauhan (Bytco) Charitable Trust, through which still continues to donate moneies for charitable works, scholarships and research works, now managed by his sons.
Split into simpler sentences: During his lifetime he had founded the Jairambhai Dayabhai Chauhan (Bytco) Charitable Trust, through which he carried on his charitable activities. The trust still continues to donate monies for charitable works, scholarships and research works, now managed by his sons.