My lawyer cheating while handle my case

My passport was expired in 2012 and the passport have DOB mistakes for that i have to contact to court for DOB correction approval. I do not know any thing about court processor for the contacts i have contacted one of my knowing person his name is VASU, all the peoples called him as LIC Vasu. he knows few advocates. i have requested help from him to contact some lawyer. his one friend is lawyer his name BVR Murthy working Visakhapatnam court. I have contacted the lawyer regarding My passport issue, his asked me 9000/- fees for handling my case and after his demanded more and more money till 18000/-. Finally his loose the case and returning my passport his demanding 5000rs, i was bargained for 2000rs and i said to him while passport giving to me that time only i will 2000rs. After his started not receiving my calls, if call from any referent numbers when listen my voice and name his cut of my calls. i am contacting VASU as well one or two times his received my calls after what happen i do not know his also started ignoring me. this issue started in 2015 still it is continue. please help me to take my passport back.