@Vidula Khanna​ 

I would love to get somebody to tell me that retaking the exam for full cost is not the only option here. If it is - you guys should re-evaluate.

For me and probably for many this is an turn off because of the hassle and cost - my skills will not diminish with time, they will improve.

You could look at the competitors - offering like recertifying for reduced cost or like one of the mayor players: yearly free renewal of certification with questionnaire focusing primally on new stuff.