  Identification of Fraunhofer lines with the known atomic and molecular
absorbers and predictions leading to such an effort has been a challenging area
of study crowned with occasional success. Such studies have also lead, amongst
other things to (i) a determination of abundances of elements and that of their
isotopes (ii) valuable information on model atmospheres and (iii) use of Sun as
a laboratory source. We summarize and review here the work done in the last
four decades in the area of solar spectroscopy at Aryabhatta Research Institute
of observational sciencES (ARIES in short) with a view to pick up new and
interesting areas for future investigations in the light of the tremendous
progress made elsewhere in observations of the sun and in the laboratory
studies.
