India's first liquid-mirror telescope, the International Liquid Mirror Telescope (ILMT) has been set up in which among of the following observatories?
1
Vainu Bappa Observatory, Tamil Nadu
2
Devasthal Observatory (Campus of Aryabhatia Research Institute of Observational Sciences [ARIES]), Nainital, Uttarakhand
3
Indian Institute of Astrophysics, Bangalore
4
More than one of the above
5
None of the above