At least two people were killed as seven synchronised blasts hit India's western Ahmedabad city on Saturday, police said.
Forty-eight people were injured in the explosions that occurred in busy areas in Ahmedabad, among the top commercial cities in India, the NDTV network reported.
Police officials told the news channel that the blasts occurred within 15 minutes starting at 6.45 pm (1315 GMT) local time in the eastern areas of Sarkhej, Maninagar, Sarangpur, Isanpur, Diamond Market, Bapu Nagar and Narol Circle.
The bombs appear to have been planted on bicycles or in tiffin boxes in Ahmedabad, some 50 kilometres south-west of Gandhinagar, the state capital of Gujarat state.
No militant group claimed responsibility for the attacks.
Indian President Pratibha Patil condemned the blasts and asked people to maintain peace and communal harmony.
Police expressed fear the bombings could trigger sectarian clashes in Gujarat, which has witnessed large-scale riots between Hindu and Muslims in the past.
Additional police forces were dispatched to the sensitive areas to maintain law and order.
The blasts come a day after eight low-intensity bombs shook the southern city of Bangalore, claiming two lives.
Forty-eight people were injured in the explosions that occurred in busy areas in Ahmedabad, among the top commercial cities in India, the NDTV network reported.
Police officials told the news channel that the blasts occurred within 15 minutes starting at 6.45 pm (1315 GMT) local time in the eastern areas of Sarkhej, Maninagar, Sarangpur, Isanpur, Diamond Market, Bapu Nagar and Narol Circle.
The bombs appear to have been planted on bicycles or in tiffin boxes in Ahmedabad, some 50 kilometres south-west of Gandhinagar, the state capital of Gujarat state.
No militant group claimed responsibility for the attacks.
Indian President Pratibha Patil condemned the blasts and asked people to maintain peace and communal harmony.
Police expressed fear the bombings could trigger sectarian clashes in Gujarat, which has witnessed large-scale riots between Hindu and Muslims in the past.
Additional police forces were dispatched to the sensitive areas to maintain law and order.
The blasts come a day after eight low-intensity bombs shook the southern city of Bangalore, claiming two lives.