Complex sentence: INTACH has established chapters not only within the nation but also outside it, now it uses funds mobilized by its international chapters in Belgium, United Kingdom and US, to take up restoration, conservation and protection project of historical structures and heritage buildings across India.
Split into simpler sentences: INTACH has established chapters not only within the nation but also outside it. It now uses funds mobilized by its international chapters in Belgium, United Kingdom and US, to take up restoration, conservation and protection project of historical structures and heritage buildings across India.