Complex sentence: In a voluntary capacity Sinha has also been a Board member (and Vice Chair) of Amnesty International UK and of the London Cycling Campaign, and is currently the Chair of the London Sustainable Development Commission.
Split into simpler sentences: In a voluntary capacity Sinha has also been a Board member (and Vice Chair) of Amnesty International UK and of the London Cycling Campaign. He is also currently the Chair of the London Sustainable Development Commission.