Complex sentence: While at India Today he was responsible for editing 150 innovative cover stories on a large variety of subjects, for initiating India Today's Best Colleges Survey, and for starting its online edition and its digital library.
Split into simpler sentences: While at India Today he was responsible for over 150 path-breaking cover stories on a large variety of subjects. He also pioneered India Today's Best Colleges Survey, and is responsible for starting its online edition and its digital library.