Before thinking, do some reading. Then think about it. The following are the NSG's ACKNOWLEDGED operations. Most of their counter terrorism works remain classified to the public, including (at one time) combat operations in Jammu Kashmir almost everyday. Just because you don't see this on TV doesn't mean these don't happen. Here is the list of publicised operations since their inception - so at least read wikipedia before making statements like "apart from mumbai they haven't done anything":
29 - 30 April 1986: 80 officers, 180 JCOs and 1,500 NSG commandos participate in clearing the Golden Temple in Operation Black Thunder I. Temple cleared and handed over to Punjab Police on 01 May 1986. No casualties on either side.
January 1988: The NSG conducted Op Black Hawk, a heliborne operation in the Mand area of Punjab. In this operation two terrorists were killed and one 7.62mm was recovered. It was a massive operation, says Ved Marwah, but did not get many spectacular results like in Black Thunder.
10 – 20 May 1988: 1,500 NSG commandos (all ranks) surround the Golden Temple for yet another assault, in Operation Black Thunder II. Sniper teams armed with Heckler & Koch PSG-1 rifles with night scope took up positions, including atop a 300-foot water tower. While commandos from the 51 SAG divided into assault squadrons, the SRG were used to seal off the area around the temple and for tactical support. In the three-day operation between 15 - 18 May 1988, the NSG cleared the temple. 30 terrorists were killed, and 217 surrendered. In mid-1990s, a NSG battalion was again deployed in Punjab to confront the Sikh rioters. There they began training the Punjab Police in counter-terrorism.
05 September - 15 January 1988: Guarding of high-risk terrorist code-named 'Jack.'
04 August 1989: Op Mouse Trap in the Tarn Taran district of Punjab, in conjunction with Punjab Police and other security forces. NSG was able to demonstrate that it was possible to achieve area dominance at night, if the strategy and tactics were right. Ved Marwah calls this Op Night Dominance.
10 November 1990: NSG task force flown to Kolkata to rescue hostages of a Thai airbus by Burmese students.
25 - 26 January 1991: The NSG was involved in Operation Ani Ben, on CI tasks in Baroda, (Gujarat) where Punjab terrorists were holed up inside a house. Two terrorists were killed and two AK-47s were recovered.
01 July-20 September 1991: NSG employed along with SIT in search and strike missions after the assassination of Rajiv Gandhi.
25 November - 16 December 1992: 150 commandos were deployed at Ayodhya during the Ram Janambhoomi and Babri Masjid crisis.
27 March 1993: 52 SAG mobilised and moved to Adampur for rescue of hostages of Indian Airlines Flight IC 486.
24 - 25 April 1993: NSG Commandos storm a hijacked Indian Airlines Boeing 737 with 141 passengers on board at Amritsar airport during Operation Ashwamedh. The hijacker, Mohammed Yousuf Shah, is killed before he can react and no hostages are harmed.
October 1998: As part of the implementation of the Union Home Ministry's decision to conduct pro-active strikes against militants, commando teams supported by IAF Mi-25/35 helicopter gun-ships began striking at terrorist groups deep inside the mountains and forests of Kashmir. After helicopter reconnaissance were conducted to pinpoint the militants, the commandos - comprising NSG and Rashtriya Rifles personnel - were para-dropped, along with supplies, into the area to hunt the militants. They had to rely on these supplies and their ability to live off the land until replenishment every fortnight or so. These missions are possibly ongoing.
15 July 1999: NSG commandos end a 30-hour standoff by killing 2 terrorists and rescuing all 12 hostages unharmed in J&K. The terrorists had attacked a BSF campus near Srinagar, killed 3 officers and the wife of another. The 12 hostages were kept locked in a room.
21 August 1999: After interrogating three captured terrorists, the Delhi Police Crime branch confirmed that two more terrorists were hiding in a one-storied house in Rudrapur, Uttar Pradesh. Since the terrorists were considered armed and dangerous (their colleagues were arrested with 100+ pounds of RDX), the Delhi Police sought assistance from the NSG. A 16-man team arrived at the house at 4:45 a.m. They began their assault at 5:30 a.m., before first light. The first militant managed to fire at the commandos with a pistol he kept by his bedside, but was killed an instant later. The second terrorist was shot before he had a chance to fire and died 40 minutes later. No NSG personnel were injured.
December 1999: Terrorists hijack Indian Airlines flight IC814 from Nepal, and land in Amritsar, Punjab. Within minutes of landing, the Crisis Management Group (CMG), which authorizes the use of the NSG, is informed. But the CMG wastes precious hours and by the time the go-ahead is issued, it is too late. On the other hand, the NSG team on alert was elsewhere and no other team was raised during the delay. The hijacked plane took off before the NSG reached Amritsar Airport. The plane lands in Kandahar, Afghanistan where one hostage was killed. Finally, the Indian Government agrees to the terrorists' demands to release three jailed terrorists. The hostages are released and the terrorists escape to Pakistan.
February 2000: Following the Flight IC 814 fiasco, the Indian Government decided to implement an Air Marshal programme. At least two NSG operators will be present on flights over select routes. These operators will be armed with weapons firing lethal, but low-velocity, fragmentation rounds to minimize danger to the passengers and prevent penetration of the aircraft. Another decision taken was to deploy NSG teams permanently at eight sensitive airports around the country, especially those bordering Pakistan and the North East. This decision will cut short reaction times for the NSG and eliminate hassles involved in flying the teams to the hijack site. It is not known if this plan has been put into action.
September 2002 – SAG commandos fly to the Karnataka state in India, in an effort to catch sandalwood smuggler and forest brigand Veerappan, in the wake of kidnapping of a former minister of the state cabinet, Nagappa. They pull out after suggesting that intelligence for the operation was inadequate. A small team is left behind to help, the hostage is eventually killed in December 2002.
October 2002 – Two terrorists attack Akshardham temple complex in Gujarat. NSG flies in, delayed by traffic in Delhi. They carry out assaults in which one commando is killed and another one is seriously injured and was in a coma, died after 18 months. But by morning the two terrorists are killed and the operation successfully completed.
December 2002 – Terrorists attack the Raghunath temple in Jammu. NSG ready to be flown out but called back at the last minute.
26 November 2008 Mumbai attacks — Operation Black Tornado and Operation Cyclone to flush out terrorists & rescue hostages after multiple attacks across Mumbai, India. Major Sandeep Unnikrishnan and Havaldar Gajender Singh Bisht of the Special Action Group lost their lives during the operations.
