Explanation

Option D is correct: In temple architecture of the Vijayanagara Empire, temples became elaborate socio-religious complexes characterized by immense gopurams (Raya Gopurams) and distinctive pillared halls:

– The Kalyaana Mandapa (marriage pavilion) was an open, elaborately carved pavilion with exquisitely sculpted monolithic pillars depicting mythical creatures (Yalis).
– It was specially constructed within the temple enclosure to perform ceremonial divine weddings of the presiding deity and goddess.
– Celebrated examples include the Kalyana Mandapas at the Virupaksha Temple and Vijaya Vittala Temple in Hampi.

Therefore, it was a notable feature of Vijayanagara temple architecture — Option D.