Out of the following, which is not a duty of an advocate :

Under the Bar Council of India Rules on professional conduct (Part VI, Chapter II, Section I, duty to the court), an advocate must not influence the decision of a court by improper means, and private communications with a judge relating to a pending case are expressly forbidden, so "To communicate with a Judge in private" is not a duty. "To respect the Court", "To refuse to represent clients who insist on adopting unfair means" and "Not to instigate litigation." are recognised duties of an advocate.