After this post, on 07th Jan 2015, itself, it took support the mentioned level ,from there, it went up to 20907 on 28th Jan, from there, it fell down and took support on 08th Feb,(on that date, it made low 18227 but closed at 18752),from there, it moved up and made high 20541 on 04th March, from there, once again, fall started  and 

Yesterday only it traded and stayed  below 18490-18290, yesterday itself it made low 17729


So now mentioned target and support of 

17500-17300 remain same 

and in case trade below that 

Next down side target of 16000-15800 

also remain same and intact.