On the posted date, it came down to 1621, from their it went up and resisted at 2129 on 06th Oct 2015, from their, fall started and once again took support at the mentioned support level of 1620-1580, this time it made low 1603 on 05th Feb., with in three days, yesterday it made high 1912.


what next ? 

Now going to resist at 1950--1980

But in case trade and stays above that 

Going to TOP OUT  2120-2220


Below chart explain even better.
(click the chart to get the zoom view)