According to law it is evident that even with an approved EB-2 case, you have the option to file the I-140 under EB-3 – that's a choice open to you, and no one can dispute it. However, this doesn't mean that your I-140 and PERM are permanently tied to EB-3. What is typically done is filing the I-140 under the category that offers a more advantageous date. For instance, if you are in the EB-2 category and the EB-2 date is more favorable, you would file under EB-2. Conversely, if EB-3 is more beneficial, you would choose that option.
It's important to note that you cannot upgrade from an EB-3 PERM to an EB-2 I-140, but you can downgrade from an EB-2 I-140 to an EB-3 I-140 – or the other way around, downgrading from an EB-2 PERM to an EB-3 I-140.
So, when you have an EB-2 PERM, you have the flexibility to file under either EB-3, EB-2, or both. Importantly, this filing of the I-140 does not terminate your case or prevent you from returning to EB-2 in the future. Thus, there's no compelling reason not to consider filing under EB-3. As for whether it's better to file your case under EB-3 or EB-2, my recommendation would be to file I-140s for both categories – EB-3 I-140 and EB-2 I-140. However, for the I-485, it's advisable to file with EB-3 – that's likely the most suitable course of action.
I took consultation with Rajiv Sir twice. In few words, I would say he is excellent in his knowledge and he really reads your case, tries to understand it before he talk to you over the phone. My case is very much complicated ( labor substitution, EB2, concurrent filing, previous comp filed chapter 7, new comp filed another GC with different salary and job duties...etc).
During my first consultation, I asked same set of questions (10 - 15) from both Rajiv Sir and Sheela Murthy but I got all my queries answered with satisfaction and piece of mind only from Rajiv Sir.
During my 2nd consultation, due to dynamic nature of my queries, discussion needed more time than scheduled and Rajiv Sir gave me another slot free of charge to give me right direction before closing discussion thread with him.
Finally, I would say his fees is highest amoung all lawyers I have met but is worth paying as it gives you piece of mind at the end.