You would find the name of contact person, in the offer document of the mutual fund scheme, whom you may approach in case of any query, complaints or grievances. Trustees of a mutual fund monitor the activities of the mutual fund. The names of the directors of asset management company and trustees are also given in the offer documents.
You can also approach SEBI for redressal of your complaints. On receipt of complaints, SEBI takes up the matter with the concerned mutual fund and follows up with them till the matter is resolved.