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Parnita,
There are many institutions that rank bschools in India so I recommend you not to look at the rankings in isolation. GIM is a different bschool compared to others as the focus is not only of curriculum and academics but also on over all development. Here we have over 18 clubs or societies that make this a student driven campus. GIM has an un-matchable infrastructure that includes finance labs, library, a multi-purpose hall for all indoor sports and other activities, a swimming pool, break out rooms specifically for group activities, an open air amphi, a Green Campus (Social and Environmental Commitment), etc. Other than infrastructure GIM possesses experience on campus faculty (Visit - http://www.gim.ac.in/new/faculty.php?type=C). The placements have been 100% year on year and the average has gone from last years' 8.87lpa to this years' 9.34lpa (visit: http://www.gim.ac.in/new/newpdfs/pgdmplacementreport2016.pdf).

The first electric light was made in 1800 by Humphry Davy, an English scientist. He experimented with electricity and invented an electric battery. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. This is called an electric arc.
Much later, in 1860, the English physicist Sir Joseph Wilson Swan (1828-1914) was determined to devise a practical, long-lasting electric light. He found that a carbon paper filament worked well, but burned up quickly. In 1878, he demonstrated his new electric lamps in Newcastle, England.
In 1877, the American Charles Francis Brush manufactured some carbon arcs to light a public square in Cleveland, Ohio, USA. These arcs were used on a few streets, in a few large office buildings, and even some stores. Electric lights were only used by a few people.
The inventor Thomas Alva Edison (in the USA) experimented with thousands of different filaments to find just the right materials to glow well and be long-lasting. In 1879, Edison discovered that a carbon filament in an oxygen-free bulb glowed but did not burn up for 40 hours. Edison eventually produced a bulb that could glow for over 1500 hours.
Lewis Howard Latimer (1848-1928) improved the bulb by inventing a carbon filament (patented in 1881); Latimer was a member of Edison's research team, which was called "Edison's Pioneers." In 1882, Latimer developed and patented a method of manufacturing his carbon filaments.
In 1903, Willis R. Whitney invented a treatment for the filament so that it wouldn't darken the inside of the bulb as it glowed. In 1910, William David Coolidge (1873-1975) invented a tungsten filament which lasted even longer than the older filaments. The incandescent bulb revolutionized the world.