  India's largest 3.6 m aperture optical telescope has been successfully
installed in the central Himalayan region at Devasthal, Nainital district,
Uttarakhand. The primary mirror of the telescope uses the active optics
technology. The back-end instruments, enabling spectroscopic and photometric
imaging of the celestial sky are designed and developed by ARIES along with
other Indian institutes. The Devasthal optical telescope in synergy with two
other highly sensitive telescopes in the country, namely GMRT operating in the
radio wavebands and AstroSat operating in the high-energy X-ray, ultraviolet
and visual wavebands, will enable Indian astronomers to carry out scientific
studies in several challenging areas of astronomy and astrophysics.
