B.M. Birla Planetarium, Chennai, Tamil Nadu.

B. M. Birla Planetarium is a large planetarium in Chennai providing a virtual tour of the night sky and holding cosmic shows on a specially perforated hemispherical aluminium inner dome.

Birla Planetarium is a vital element of the Periyar Science and Technology Centre, a leading institute in Tamil Nadu which houses eight galleries, namely, Physical Science, Electronics and Communication, Energy, Life Science, Innovation, Transport, International Dolls and Children and Materials Science, with more than 500 exhibits.