Maoists on Monday blew up railway tracks at two different places in Jharkhand as they began a day-long strike in three states to protest price rise and corruption.
In several parts of the metropolis, shops were shut in protest and schools held prayer meets as a mark of respect to the CRPF personnel who were killed on Thursday.
Here are some of the worst terror attacks in recent history with trains and passengers as intended targets.
According to a senior source in the Intelligence Bureau, when a minor blast occurred outside the Delhi high court on May 25, an intelligence input was received that a Sikh militant group may try to do something in New Delhi to bring attention to Professor Davinderpal Singh Bhullar's mercy please before President Pratibha Patil.
The fire had started when the train was at Diwana railway station near Panipat in Haryana, it said.
He slammed the Samajwadi Party for being sympathetic towards terrorists and claimed that the previous government headed by it had sought to withdraw cases against several terror accused as 'a return gift'.
The semi-high speed Train 18, which has been recently rechristened Vande Bharat Express, can run up to a maximum speed of 160 kmph and has travel classes like Shatabdi trains but with better facilities. It aims to provide a totally new travel experience to passengers.
Six serials blasts rocked the venue of Narendra Modi's rally in Patna minutes before he arrived there to address the gathering while another crude bomb exploded at the railway station, leaving five dead and over a fifty injured.
A powerful explosive device was defused on Wednesday on board a train in Pakistan that had passed through Lahore railway station at the time of a bomb blast that killed three persons and injured over 50 others.
A powerful improvised explosive device was recovered on Thursday on railway tracks at Bijni in Chirang district of Assam on the eve of the 12-hour Assam bandh called by anti-talk faction of the outlawed United Liberation Front of Assam to protest Prime Minister Manmohan Singh's day-long visit to Guwahati on Friday.
In a pre-dawn attack, heavily armed Maoists blew up a railway station and abducted three railway employees in Orissa's Sundargarh district, about 80 km from Rourkela on Tuesday.
The explosives were found in a haversack that was among the 150 unclaimed baggages at the terminus post the November 26 attack. The haversack was similar to the one carried by the terrorists who attacked the terminus, says acting ATS chief K P Raghuvanshi.
At least 50 passengers were injured when three bogies of the Puri-Guwahati Express were derailed in Assam's Kamrup district.
Thirteen assailants were shot dead on Saturday by Chinese police after they rammed their explosive- laden vehicle into a police station in a suicide attack that injured three officers in the restive Xinjiang province.
At least 17 people were injured after a low-intensity blast on the Sealdah-Krishnanagar local train in Kolkata on Tuesday.
At least 70 persons were injured, several of them seriously, when four coaches of the Guwahati-Puri Express were derailed and four others capsized due to a powerful explosion at Dhatkuchi between Rangiya and Goghrapar railway stations in Assam at 8.20 pm on Sunday. Railway authorities have rushed a relief train with a medical team to administer first aid to passengers at the accident site, while the seriously injured ones are being shifted to hospitals in Rangiya and Guwahati
At least three persons were killed and about 30 others injured when a powerful bomb explosion ripped through the coach No 8209 of Guwahati-Tinsukia passenger train near Diphu Railway station in Karbi Anglong Hill district of Assam at around 8:15 this morning.
Militants late on Monday night carried out a powerful mine blast on a railway track near Wanbal Nowgam on the outskirts of Srinagar, damaging a portion of the track.
The security forces continue their hunt for members of the local terror group National Thowheeth Jamath which was behind the deadly Easter Sunday bombings in which 253 people were killed and over 500 injured.
'My brave JCO managed to get to the gun, sit on top of the dead man and fired away at the attacking aircraft till they melted away into the darkness.'
The massive arch-shaped 1.315-km long 'engineering marvel', designed to withstand wind speeds of up to 260 km per hour, will rise 359 m above the river bed.
The locomotive of the Kamrup Express was damaged in an explosion triggered by tribal Karbi militants at Khakhati in Assam's Karbi Anglong district at around 1.30 pm on Tuesday. However, over 400 passengers traveling in the train escaped unscathed as the impact of the explosion was not felt in the coaches. The damaged locomotive of the passenger train was replaced and the train continued its journey towards Tinsukia in Eastern Assam.
Swami Aseemanand, an accused in 2007 Samjhauta Express blast case, was granted bail by the Punjab and Haryana high court but he is unlikely to come out of jail as he is facing a trial in two other blast cases.
The Ministry of Railways on Friday ordered an inquiry to ascertain the cause of fire in the Gouthami Express train in Andhra Pradesh. The commissioner of Railway Safety will hold the inquiry and submit the report at the earliest. Forensic experts are also examining the cause of the fire, said Railways Minister Lalu Prasad Yadav.
A deafening bang and a powerful tremor flung sleeping passengers off their berths as the Delhi-bound Seemanchal Express jumped the tracks.
After the family refused to claim the body of Ainul Ansari alias Tarique, a suspect in the serial bomb blasts in Patna who succumbed to his injuries at a hospital, the railway police has decided perform his last rites in a day or two, police officials said on Monday.
Passengers of the Tiruchirapalli-Chennai Rockfort Express had a narrow escape when suspected pro-Liberation Tigers of Tamil Eelam elements blasted railway tracks at Perani railway station in Villupuram district of Tamil Nadu in the wee hours on Saturday.
Two Indians who returned from Najaf in Iraq recount their horrible ordeal that began almost a month ago when the Sunni militants took over Iraq and declared a new Islamic state.
The blast occurred in a general coach of the train between 9.30am and 10am when it was on its way to Ujjain from Bhopal, Railway PRO, Indore, Jitendra Kumar Jayant said.
This is the second blast in Delhi within 24 hours.
Passengers on board the Bhubaneswar-New Delhi Rajdhani Express had a miraculous escape when ten of its coaches and the engine derailed near Gaya station following an explosion triggered by the Maoists, police said.
Security was tightened at the Chhatrapati Shivaji Terminus railway station and other sensitive locations in Mumbai on Wednesday after a threat to carry out explosions in the city, a media report quoted an official as saying.
No militant group has so far claimed responsibility for the blast.
The arrest comes at a time when security in the capital is at an all-time high in view of the festive season.
Odisha Police, however, ruled out involvement of Naxals in the Hirakhand mishap.
A suspected Lashkar-e-Tayiba terrorist was arrested in New Delhi on Tuesday and explosives were recovered from him, police said.
Special NIA court judge Jagdeep Singh posted the matter for March 14 after a Pakistani woman filed a petition claiming she had some evidence relevant to the case.
The Centre has told the Supreme Court that West Bengal's power to withhold consent to the Central Bureau of Investigation is not absolute and the probe agency is entitled to carry out investigations that are being carried out against Central government employees or have a pan-India impact.
A division bench of justices A S Oka and A A Sayed granted bail to Atif Mulla on a surety of Rs 1.50 lakh.
