Hi Krishna,
Congratulations on getting your green card.
I am also on the same boat with July 2008 priority date on EB3. 485 submitted on August 2018. My question is, did you attended GC Interview? The reason i am asking is my I-140 is approved much before March 2017 -- as per the rule that anyone who got approval of I-140 after March 2017 are only required Interiview. Please let me know if you have got GC interview , if attended how did the process felt to you.
Thanks
Raghu