<br/>In Andhra Pradesh, an indefinite curfew was clamped in almost all areas of Old City of Hyderabad since Monday evening. <br/><br/>The decision came after one person was stabbed to death and 17 others injured in violence that broke out again on Monday. Clashes between two groups last Saturday led to outbreak of violence in several areas of the old city. <br/><br/>City Police Commissioner A K Khan said indefinite curfew has been imposed in 17 police station areas of the South Zone.