"The suicide attack at the Wagah border is a very serious internal security challenge for Pakistan. The fact that the suicide bomber could enter the area despite the security calls for a certain degree of internal review by the Pakistani agencies," Commodore Bhaskar told ANI here.
Commodore Bhaskar further said that the activities of terrorist groups in Pakistan call for deep introspection, both within India and Pakistan.
"The internal security of Pakistan has been challenged by the Pakistani Taliban and its various support groups. This particular incident has many elements that should call for deep introspection both within Pakistan and India which is directly affected by any development that takes place near the Wagah border," he said.
He further said that since the incident took place close to the border, India must develop its surveillance capabilities to keep an eye on both sides of the border.
"For us the cause for concern is the fact that the incident took place so close to the Wagah border, which means that there is a probability that the same kind of attack can take place on the Indian side or along the border. India would have to acquire the capacity for surveillance not only on its side of the border but on the other side of the border as well," he said.
Earlier on Sunday, a reported 55 people, including three security personnel, were reportedly killed and nearly 200 injured when a suicide attacker detonated a powerful bomb at Wagah in Pakistan, just after the flag-lowering ceremony at the border crossing.