India's first liquid-mirror telescope, the International Liquid Mirror Telescope (ILMT) has been set up in which among of the following observatories ?

India's first liquid-mirror telescope, the International Liquid Mirror Telescope (ILMT), has been set up at the Devasthal Observatory in Nainital, Uttarakhand. This telescope is a significant advancement in the field of astronomy and is designed to observe deep-sky objects such as galaxies and quasars.

• The ILMT is an innovative type of telescope that uses a liquid mirror instead of a traditional solid one. It can observe the sky continuously without the need for repositioning.
• The Devasthal Observatory is one of the highest altitude observatories in India, which offers clear skies for astronomical observations.
• The telescope is a joint project between India, Belgium, and Canada, and it will be used to explore the deep sky and monitor celestial objects.
• The Aryabhatta Research Institute of Observational Sciences (ARIES) is the institution behind the research and operation of this observatory.

• Vainu Bappa Observatory – Located in Tamil Nadu, it is another important astronomical observatory in India, but it is not the site for the ILMT.
• Indian Institute of Astrophysics, Bangalore – Known for its contributions to space science and astronomy, but ILMT is located in Nainital.
• Major Atmospheric Cerenkov Experiment Telescope (Ladakh) – Located in Ladakh, but it is a different type of telescope used for gamma-ray astronomy.