Pje Enterprises — fraud calling and demanding money

Hello sir/maam.
This is umit kumar from bihar.
Once i worked with pje enterprises for part time job (Typing). Later i cancelled the deal and settled full and final amount and got noc from pje enterprises. But now i am getting call from advocate shikha patel (New delhi) ([protected]/[protected]) mentioning pje enterprises has filed a case against me. To settle this cas outside the court i have to pay amount to pje.
Plz help regarding this... Even after i got noc, they are calling.