A man (R) uses his mobile phone as he stands next to bodies covered in sheets at the site of a blast, outside a public park in Lahore, Pakistan, March 27, 2016.[Photo/Agencies]

The country's army chief also held a high level meeting and directed concerned commanders, Intelligence agencies to commence operations as soon as possible to find linkages and perpetrators of the suicide attack, the Inter-Services Public Relations, the mouthpiece of Pakistani army said.

International community including the U.S., Turkey and India also condemned the blast.

"Heard about the blast in Lahore. I strongly condemn it. My condolences to families of the deceased & prayers with the injured," Modi said in a tweet.