At least eight people were killed when a bomb blast ripped through a restaurant popular with foreign tourists in Pune on Saturday, police and home ministry officials said.
Following is a chronology of some of the major attacks in India in the past five years:
Oct. 29, 2005 - Sixty-six people are killed when three blasts rip through markets in New Delhi.
March 7, 2006 - At least 15 people are killed and 60 wounded in three blasts in the Hindu pilgrimage city of Varanasi.
July 11, 2006 - More than 180 people are killed in seven bomb explosions at railway stations and on trains in Mumbai blamed on Islamist militants.
Sept. 8, 2006 - At least 32 people are killed in a series of explosions, including one near a mosque, in Malegaon town, 260 km (160 miles) northeast of Mumbai.
Feb. 19, 2007 - Two bombs explode aboard a train heading from India to Pakistan; at least 66 passengers, most of them Pakistanis, burn to death.
May 18, 2007 - A bomb explodes during Friday prayers at a historic mosque in the southern city of Hyderabad, killing 11 worshippers. Police later shoot dead five people in clashes with hundreds of enraged Muslims who protest against the attack.
Aug. 25, 2007 - Three coordinated explosions at an amusement park and a street stall in Hyderabad kill at least 40 people.
May 13, 2008 - Seven bombs rip through the crowded streets of Jaipur, killing at least 63 people in markets and outside Hindu temples.
July 25 - Eight small bombs hit Bangalore, killing at least one woman and wounding at least 15.
July 26 - At least 16 small bombs explode in Ahmedabad in Gujarat, killing 45 people and wounding 161. A little-known group called the "Indian Mujahideen" claims responsibility for the attack and the May 13 attack in Jaipur.
Sept 13 - At least five bombs explode in crowded markets and streets in the heart of New Delhi, killing at least 18 people and injuring scores more. The Indian Mujahideen again claim responsibility.
Oct 30 - Eleven bomb blasts rip through Guwahati, the main city of northeastern Assam state. Detonated in quick succession, they kill at least 68 people and wound 335.
Nov 26-29 - Coordinated bombing and shooting attacks by 10 gunmen, including on luxury hotels, kill 166 people in Mumbai. India blames the attacks on Pakistan-based militants, and the only surviving gunman says they were members of the group Lashkar-e-Taiba.