Complex sentence: It houses 4 gateway towers, the "gopurams", with the tallest being the eastern tower with 11 storeys and a height of, making it one of the tallest temple towers in India.
Split into simpler sentences: It houses 4 gateway towers, the "gopurams". The tallest is the eastern tower, with 11 stories and a height of, making it one of the tallest temple towers in India.