Thanks for writing to H.C.M. for your query regarding two small tumors on vocal cords which unable your father to speak properly.
I am suspecting most likely your father is having vocal nodule on his vocal cords, if so than please don't worry these can be removed easily by Microlaryngeal surgery. This is an endoscopic surgery
and can be managed in Day care clinics.
Whatever is inside after excision histopathological examination of excised tumor is necessary to know the nature of tumor (Benign or Malignant).
I hope you are now clear about proceedure. You have asked about expences this differ from place to place here at kanpur it cost about INR-Rs 25000/=