I read this answer on Quora.. Its not my answer ..
just adding and removing some lines -
"Unfortunately India is one of the biggest victims of terrorism in the 21st century world. Interestingly,
it has become very fashionable over the past 4 to 6 years to flash Hindutva terror or Saffron terror at the drop of a hat. Hindutva, is essentially an ideology which is pro-Hindu, and Saffron is a colour most associated with Sanatana Dharma, or Hinduism as the world labels it. Many people bring Hindu terror, Hindutva terror or Saffron terror into political and media discussions to score brownie points with the generally Hindu-despising crowd out there the so-called secular people, communists, and some friendly neighbours of who have a big stake in projecting Hindus in bad light.
Since Islamic terror or Muslim terror has been so much in news this century, some people felt obligated to bring in an equal-equal balancing act to emphasise their own secular credentials.
But Hindutva terror or Hindu terror is mostly meaningless as hardly any Hindu would go out and commit terrorism for the glory of the Bhagavad Gita
There were over 10,000 terrorist attacks in 2011, affecting nearly 45,000 victims in 70 countries and resulting in over 12,500 deaths.
India features among the six countries most affected by terrorism in 2011. In Afghanistan, 3,353 people died due to terror attacks in 2011. Iraq saw 3,063 deaths, Pakistan saw 2,033, Somalia saw 1,101, Nigeria saw 593 and India saw 479 victims. These are purely terrorism-related deaths, and do not include deaths in religious / sectarian wars like in Syria where more than 20,000 people have died in 2011 itself.
The war-torn Afghanistan, the unstable Iraq, and the very likely imploding Pakistan together account for 64 per cent of the terrorist attacks in the world during 2011.
Now let us come to religious demographics. I am not sure this even deserves mention, but something needs to stand in contrast to all the Hindutva bashing in Indian and Pak media.:
1. In 2011, 56 per cent of the worlds terrorist attacks (5,700) were by Sunni Muslims. 70 per cent of the worldwide deaths were also OF Sunni Muslims.
2. Effectively, out of the 12,533 terror victims in the world in 2011, 8,886 were killed by Sunni Muslim extremists.
3. There were 279 suicide attacks in the world during 2011. Sunni Muslims conducted 93 per cent of these attacks.
4. Out of 12,000+ killed by terrorists in 2011, 6,418 were civilians. 755 were children. Nearly 90 per cent of terror victims, with their religion identified, were Muslims.
Here were the only 3 Indian terror organisations featured:
1. Communist ideology holding Communist Party of India Maoist.
2. Indian Mujahideen, the terror outfit that is alleged to have links with Students Islamic Movement of India (SIMI), for which the incumbent Foreign Minister of India Salman Khurshid was a legal voice.
3. Harkat ul-Jihad Islami (HUJI).
http://www.nctc.gov/docs/2011_NCTC_Annual_Report_Final.pdf