Recalling the scenes that followed the attack on 'Nirankaris', the eyewitnesses said they were panicked, shocked and scrambled through a thick blanket of smoke.
Information can be provided on the Punjab Police helpline -- 181, officials said, adding the identity of the informer will be kept a secret.
Punjab CM Amarinder Singh said that the 'possibility of involvement of ISI-backed Khalistani/Kashmiri terror groups can't be ruled out'.
Police have already arrested Bikramjit Singh, an operative of militant organisation Khalistan Liberation Force who was allegedly driving the motorcycle on that day.
Pakistan's Inter-Services Intelligence is quite active in fomenting trouble in Punjab and the grenade attack in Amritsar was a pure act of terrorism, Singh said.
'You bust one module and another one comes up.'
Chawla, who is the general secretary of Pakistan Sikh Gurdwara Prabandhak Committee and is known to speak for 'Khalistan', had shared the purported picture on his Facebook page.
The other deceased were Sandeep Singh, a resident of village Rajasansi, and Kuldeep Singh.
"We believe in peace and we are giving a message of peace from here. But, their generals should understand that we have a large Army and we are prepared..."
From the Aadhaar verdict to #MeToo's arrival in the country to the entry into the Sabarimala temple -- India had a newsworthy 2018. As we step into 2019, these are the top moments from the year gone by.
