Location: Inside the IIT Campus in Powai, Mumbai (map).
Timings: 6am-12pm and 4pm-9pm.
About the Temple: This is an ancient temple dating back to around 10th century, according to śilāśasanās (stone inscriptions) retrieved from the near-by Powai lake. The main deity of the temple was Lord Śiva, in the name of Nagajeśvara Svāmi (Lord of daughter of Himalayas). The temple was later maintained by Simhappa, a mahāsāmant under the Silhara kings. An agricultural land (the present IIT campus) was also donated by him to the Temple. Chattrapati Śivāji, later installed Goddess Padmāvatī‘s idol and from then the temple became famous after Her name. Padmāvatī Devi, though an incarnation of Goddess Lakṣhmī, has many striking resemblances with Mumbādevi: Devi does not have a mouth and the idol is covered with sindhūr. Also, the Devi’s chālīsa mentions Her name as Pavaīsvarī, based on which the locality is known as Powai. Perhaps this shows that Mātā Śakti is the same whether called as Pārvatī or Lakṣhmī or Sarasvatī. Currently, inside the temple premises there are three temples: Padmāvatī Devi, Nagajeśvara Svāmi and a new temple of Lord Ganeśa.
Links: Temple website.