Accenture India — Permanent employee forced to resign

Address:

Mumbai City, Maharashtra, 400050

Please let me know if this complaint falls in the category of consumer complaints and consumer courts can be approached for this issue.
I am been advised that I cannot and have to approach courts for this and for this I will have to deposit certain percentage of amount claimed.
I had worked as a permanent employee for 3.5 years and the company has rated me bad in their internal yearly rating and then abused me PIP forcing me literally to either resign or they will terminate my employment post which I would find it impossible to secure another job.
I had no option but to quietly resign and let go and get a other less suitable job with quite less salary.
Additionally, the company did not pay me the mandatory 3 months salary as they forced me to leave right away without looking for a another job. This was followed up by rigorously and after 3 months of follow up and mails exchange, I was paid finally with the excuse that they forgot that and regret the delay.
Please keep this discreet.
Please advise.