Ssi exemption of 4 cr.

hi Experts, 

I am a Footwear & Apparels Manufacturer who is registered in excise since 2011 - my turnover was over 1.5 cr so took registration and have been paying excise tax.

in 2011 i took exemption of 1.5 cr on a total turnover and paid duty on rest

in 2012-13 my turnver was 4 cr ( i took exemption of 1.5 as in previous year the duty did not crossed 4cr and paid the rest)

in 2013-14 excise on apprels was removed so my exciseable goods turnover was 2.5 cr but i paid duty on whole as in previous year i crossed the limit of 4 cr.

my question is can i avail the exemption again in the year 2014 - 15 as my exciseable good turnover was not 4 cr can i avail the exemption

please reply with some supporting case example so that can be sure.

thanks