temple -RRB- for narrow sectarian or other purposes , '' India 's Ministry of External Affairs said in a statement . Killed in Sunday 's attack in Vienna was 57-year-old Sant Rama Nand . A second guru , Sant Niranjan Dass , 68 , was seriously injured . His health has improved noticeably , according to the Indian Embassy , the Austria News Agency reported . Fifteen others were also wounded . `` Sant Niranjan Dass is doing well , '' the embassy said . `` He could soon be released from the hospital . '' Six people were arrested in connection with the attack , which occurred Sunday afternoon in Vienna 's 15th district , police spokesman Schwaig Hofar told CNN . One suspect shot the two gurus , and five other attackers wielding knives assaulted people in the congregation during prayer , Hofar said . Four of the wounded were suspects , two of them in serious condition , he said . About 150 people were in the room when the violence took place , he said . Authorities are investigating what triggered the attacks , but Austrian Interior Minister Maria Fekter said Sikhs have lived `` exceptionally
NEW DELHI , India -LRB- CNN -RRB- -- Tensions eased in the northern Indian state of Punjab on Tuesday , following widespread violence across the region after a Sikh guru was shot to death and another was wounded at an Indian temple in Vienna , Austria . Sikh demonstrators brandish sticks as they shout slogans during a protest in Amritsar . The situation was tense , but under control , Punjab 's inspector general of police said Tuesday morning . The army and federal security forces were called in to restore order , added inspector general Parag Jain . Thousands took part in demonstrations across the Doaba region , where protesters attacked public transportation , knocking out train service in some areas . They also blocked a national highway to Jammu , CNN sister network CNN-IBN reported . A number of businesses were ransacked as well . Police reported one death . Indian Prime Minister Manmohan Singh , himself a Sikh , appealed for calm , in a statement . `` There is no place for violence in a secular society like India 's and certainly no excuse whatsoever for the violation of the sacred premises of a -LRB- Sikh