Complex sentence: Much of this was later removed to Trichinopoly in later years by his grandson Chokkanatha; still one third survives making it one of the grandest buildings of its kind in Southern India.
Split into simpler sentences: Much of this was later removed to Trichinopoly in later years by his grandson Chokkanatha. Still today though one third survives, making it one of the grandest buildings of its kind in Southern India.