I am fulfilling all the eligibility criteria as mentioned in the job descriptions, I have 11 years of experience which covers 6 years of experience as startup co-founder. Despite all these credentials I am not getting any interview call, could you please suggest what should be the the best way to reach out to PM jobs in Google, Facebook, Adobe or similar companies?
Every company is different in terms of how they handle the interview process, but when it comes to companies like Facebook and Google, I have heard that knowing current employees is a big help especially if they have worked with you before. Besides that, I would say their process is differently not systematic enough that you can check off all the boxes and expect to get a job. There are many stories of people that are more than qualified than most people that did not land a job. They are large enough that they have that luxury.
I don't know your specific situation, but I would start talking ALOT with current employees, perfect your specific skills (be great at 1 thing, not ok at a lot), and keep trying :)
If you want to hop on a call I can help you with your specific situation. I have gotten pretty far in the interview process at Google, before I decided not to proceed and instead started my current startup Due.com.