Hello Rahul,
I strongly invite you to ask this question to the PMI, as I'm sure they will be able to guide you through the process.
Nevertheless, please notice that the PMI has recently change the application (as of mid-June 2020). The professional experience is now measured in months (and not in hours), so you are now required to prove a minimum of 3-year / 36-month project management experience. The non-overlapping requirements still holds, though. So, if in a given month (say, January) you managed two projects, that month will count only once, and not twice because of the two projects. Anyway, the PMI application system automatically monitors whether the requirements are met based on the project information you enter in the application: I found it useful for verification.
Hope that helps,
Gabriella