NEW DELHI (Reuters) - Three near simultaneous blasts ripped through India's financial city of Mumbai on Wednesday, killing at least 20 people, in the biggest attack in the city since 2008 assaults blamed on Pakistan-based militants.
Following are some major militant attacks on India in recent years.
March 7, 2006 - At least 15 people are killed and 60 wounded in three blasts in Varanasi.
July 11, 2006 - More than 180 people are killed in seven bomb explosions at railway stations and on trains in Mumbai. Islamist militants are blamed.
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 protesting 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 the western city 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 the state of 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 (LeT).
Feb 10, 2010 - At least eight people were killed in a bomb attack on a restaurant popular with tourists in the western Indian city of Pune. Police investigations focus on LeT and the Indian Mujahideen.
April 17, 2010 - At least one person was killed and 15 people were wounded after two bombs exploded outside a packed cricket stadium in the software hub of Bangalore. Police suspect the LeT and other militant groups were involved.
Sept 19, 2010 - Gunmen on motorbikes shot at a tourist bus near the main mosque in New Delhi, wounding two Taiwanese visitors, weeks before the city hosted the 54-nation Commonwealth Games. Officials put it down to local gangs and ruled out the involvement of militants.
Dec 7, 2010 - A two-year-old girl was killed and several wounded in a blast outside a temple in Varanasi in northern India.
Reporting by James Pomfret; Editing by Sugita Katyal