The trial has begun in India's commercial capital, Mumbai (Bombay) of 13 people accused of carrying out the bombing of local trains in July 2006.
Seven blasts hit Mumbai's busy commuter network
A total of 187 commuters were killed and more than 700 people wounded in the seven co-ordinated blasts on the city's train network during rush hour.
Police in Mumbai have said they believe the bombings were carried out by a group linked to the Pakistani-based militant group, Lashkar-e-Toiba (LeT).
Pakistan rejects the allegations.
It says India produced no evidence of Pakistani involvement in the attacks.
Charges have been brought against 13 Indian Muslim men. They were among more than 300 people who were initially detained.
The 13 defendants are accused of plotting and carrying out the bombings. They deny the charges, and say that they do not recognise the Mumbai court's authority.
The accused have not used lawyers and are defending themselves.
Explosives hidden in pressure cookers exploded within minutes of each other on seven suburban trains as commuters travelled home during rush-hour on 11 July last year.