In a statement here, he said the comprehensive study, which was carried out in all 22 districts, had "exposed" the Congress as well as the AAP.
"The PGIMER report puts the entire number of addicts in the state at 2.70 lakh. Other reports, including that conducted by the AIIMS, have come out with even lower figures than this," Badal said.
"Both the parties should now tell Punjabis why they branded them as drug addicts and tender an unconditional apology to the people of the state," he said.
One in six people in the state were dependent on one substance or the other and their use is more common in rural areas, it said.
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The SAD chief today said the survey listing drug addiction in Punjab at less than one per cent had "nailed the lie" of Congress vice-president Rahul Gandhi.
He said Gandhi had claimed in October 2012 that 70 per cent of the state's youth were drug addicts.
Hitting out at AAP national convener Arvind Kejriwal, Badal said the Delhi Chief minister and men had also claimed that 40 lakh youth of Punjab were drug addicts.
The "entire conspiracy" was hatched to counter the development narrative of the previous SAD-BJP government, he said.
"Though the Congress succeeded in its goal of forming government in Punjab, it caused incalculable damage to its people and its economy. Both the Congress and AAP played with the lives of the youth... It also dented the image of Punjab and Punjabis worldwide," Badal claimed.