Singh was speaking at a function jointly organised by Congress and People's Party of Punjab (PPP) to honour him.
Addressing his supporters, Amarinder said there was a groundswell of anger against the ruling Akali-BJP alliance.
About his rival Arun Jaitley, Amarinder said he had been cheated by the Akalis by being made to contest from Amritsar where he is finding it difficult to run a campaign.
Meanwhile, SAD president Sukhbir Singh Badal took a dig at Amarinder and said the former Chief Minister was resorting to an aggressive style of campaigning instead of talking about the achievements made during his tenure.
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"Living as he is in a self delusional world, he is also creating examples of how aggression had paid off for him in the past," he said.
Stating that facts spoke for themselves, he said the truth was that the people of Punjab had taught a lesson in electoral politics to Amarinder not once but twice.
"During his tenure as Chief Minister he initiated an era of vendetta politics and unjustly jailed my father (Parkash Singh Badal) and even me. However the people of Punjab adjudicated on his politics of vendetta and shunted him out of office in the 2007 Assembly elections," he said.