Indian Scientists have designed and developed a low-cost optical spectrograph.<br />'' <br />''The spectograph can locate sources of faint light from distant quasars and galaxies.<br />'' <br />''It is one of the the largest astronomical spectrographs in the country and has been successfully commissioned on the 3.6-Metre Devasthal Optical Telescope near Nainital Uttarakhand.<br />'' <br />''<span style="color: #222222;">Dr Amitosh Omar, scientist at the research institute ARIES, who led the project team spoke to All India Radio on this development. </span><br />