1. The MP Birla Planetarium in Kolkata is one of the oldest planetariums in India and is named after industrialist Madhav Prasad Birla. It was inaugurated in 1963 and offers visitors a unique opportunity to learn about astronomy and space through various interactive exhibits and immersive shows. The planetarium has a state-of-the-art Zeiss Mark-IV projector that provides a realistic representation of the night sky.

2. The working hours of the MP Birla Planetarium are usually from 12:30 PM to 6:30 PM on weekdays and from 10:30 AM to 6:30 PM on weekends and public holidays. For the most up-to-date information on timings and any changes, you can contact the planetarium at 033 2223 1511.

3. The ticket prices for the planetarium vary based on the type of show and exhibition you choose to attend. There are usually discounts for students, senior citizens, and group bookings. The planetarium is located on Cathedral Road in Kolkata and can be easily reached by public transportation such as buses, taxis, and the metro.