In a brief interaction with the media, he asserted that he will choose to serve Punjab "hundred times" above any party or family.
The cricketer-turned-politician, who made clear his displeasure with BJP, parried queries on whether he would join Aam Aadmi Party, saying he will be standing wherever the interests of Punjab are served.
Targeting BJP, Sidhu said he delivered the prestigious Amritsar seat to the party during adverse circumstances but was "drowned in the Modi wave" in 2014, when he was asked to shift from the constituency.
"It happened three or four times," he said referring to the party's suggestion that he keep away from the state's politics. This, he said, cannot be "tolerated" even once as "no party in the world is bigger than Punjab for me. I am willing to accept any loss for that."
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Asked if he wanted to be the chief ministerial candidate in the next year's assembly elections, he said he always wanted to serve Punjab.
"I said I will not fight. I have no wish for any post but I will not break the trust of those who made me an MP from Amritsar and gave me the highest honour in 21 generations. Now you tell me that I should leave Punjab. I am given a Rajya Sabha seat and then told that Sidhu you keep away from your nation. Tell me what is my sin," he said.
ministerial candidate for the Punjab assembly elections due early next year, Sidhu said, "You will find Sidhu standing wherever the interests of Punjab are served. I have said what I had to. Navjot Singh Sidhu always wanted to serve Punjab and Amritsar."
Sidhu spoke at length about his innings in the BJP starting from 2004 Lok Sabha elections and how he had delivered Amritsar seat to the party again and again only to be kept away from the state's affairs and then denied the seat in 2014.
"When storms were blowing, then Navjot Singh Sidhu was sent... Now when there was a wave in support of Modi sahab, I was drowned along with rivals," he lamented.
Top party leader Arun Jaitley had contested from Amritsar in 2014 but lost to senior Congress leader Amarinder Singh.
The Sikh leader, known for rapid-fire bytes, said he also worked for the victory for his wife Navjot Kaur Sidhu from a difficult seat.
Though he has maintained silence over his sour relations with the Akalis, his wife has been more vocal and has aired their anger with SAD and also with BJP over its alleged cold response time and again.
Akalis are in power in Punjab with the BJP as their junior ally. AAP has emerged as a strong force in the state and Sidhu's departure from the party is seen as a major setback for the saffron party ahead of Assembly election next year.