Apollo Hospital — Mistreatment of patient

My sister is a post ceserean patient in appollo hospital, vizag...on 12th September night she suffered from severe chills and was shivering..the duty doctor misbehaved with my sister with her arrogance and refused to treat her for shivers...she failed to respect the patient and inturn demanded respect... during the course my sister had an emergency urination but the doctor refused to allow the changing of bedsheet..plzzz do react for it or I need to file a a case against her