Nehru Planetarium and Discovery of India Exposition

Set back from the traffic on Dr Annie Besant Road in Worli, the Nehru Centre is one of the few buildings in Mumbai that people recognise by shape alone: a tall cylindrical tower wrapped in a honeycomb of perforated concrete, standing beside a low white dome that looks like a small planet half-buried in the lawn.

• The dome is the Nehru Planetarium, which opened in 1977; the tower and its adjoining halls hold the Discovery of India Exposition, along with an art gallery and an auditorium.
• The complex is widely credited to the architect I. M.
• Kadri and remains a confident piece of sculptural modernism in a city that now builds mostly in glass.
• Visitors arrive for one thing and usually stay for both.
• Under the dome, seats angle back towards an artificial sky and a projection system that has been upgraded several times over the decades.
• Sky shows run at fixed times through the day, alternating between English and Hindi, and typically last around three-quarters of an hour — constellations, planets, eclipses, the life and death of stars.
• Beyond the shows, the planetarium has long worked as a genuine astronomy-education centre, with talks, student quizzes and public viewing sessions timed to eclipses, meteor showers and bright comets.
• Tickets are sold at the counter on the day, and weekend and school-holiday shows fill up early, so come with a margin.
• The Discovery of India Exposition takes its title and its spine from Jawaharlal Nehru's 1946 book, written during his imprisonment.
• Fourteen galleries move from Indus Valley seals and bronzes through Vedic and Upanishadic thought, Buddhism and Jainism, the Mauryan and Gupta centuries, southern temple builders and bronze casters, the bhakti poets, mathematics and astronomy, textiles and handicrafts, and finally the freedom movement.
• It is told in murals, dioramas, models, replicas and painted panels rather than screens — unhurried, old-fashioned and, on a wet Mumbai afternoon, a quiet air-conditioned pleasure.
• Allow an hour here even if you came only for the stars.
• Food nearby needs a little care.
• Mumbai is a major seafood and non-vegetarian city — Worli has its own Koli fishing village a short way west — so never assume a kitchen is meat-free: look for a clearly displayed pure-vegetarian board and ask before you order.
• That said, this stretch between Worli, Prabhadevi and Dadar West is also one of the city's strongest vegetarian belts.
• Gujarati and Marwari thali houses serve unlimited rotis, dal, kadhi and a sweet; Udupi-style counters do idli, medu vada, uttapam and filter coffee from morning onwards; and farsan shops sell khaman, patra, fafda and dhokla by weight.
• Street standards are easy vegetarian wins too — vada pav, pav bhaji (ask that it be made on a clean vegetarian griddle), bhel and sev puri — washed down with sugarcane juice, tender coconut water, kokum sherbet or chaas.