India's federal crime agency has arrested three railway officials in connection with one of the country's deadliest train accidents that killed more than 290 people last month.
The three men have been charged with culpable homicide without murder and destruction of evidence.
The Central Bureau of Investigation identified them as two signal engineers and one technician.
The train crash in eastern Odisha state happened when a passenger train was diverted onto an adjacent loop line and rammed into a freight train.
