Revalidation for CA final course

I will answer this to the best of my knowledge and my experience - point 1, reval as you know is when your regn exceeds 5 years. no 2 for reval you have an online form in icai website. no 3 mainly exam appl forms as you know do not insist to give the reval date as many do not know the date of reval. we don't receive a mail for that. we have to go and get the dates manually from icai branches. so if you are okay with it contact directly. else, write the exam and then contact icai. I dont think they would make an issuse since your regn is live till may 2020.

Register yourself in the SSP portal
if you are old course revalidation is not possible since the old course is scraped, you need to convert from old to new.