Maharaj, who joined BJP in 2014 soon after Harish Rawat became Chief Minister of Uttarakhand, alleged that Congress is "looking at people as Hindu and Muslim face" and "neither honouring nor respecting" its workers who are loyal to them.
He said Congress leadership chose to ignore his "seniority and capabilities" and gave major posts to Rawat.
"I was told in Congress that I am a Hindu face. You must have seen that Harish Rawat was made the minister at the Centre, then chief minister after Vijay Bahuguna was removed...He was also made state party president. You gave him everything. What about the other leaders.
"We are human beings and want to serve the nation. You have to give important responsibility to someone. After I joined BJP, they told me you go to Rajya Sabha. What are these things? We don't yearn for such things. You are not honouring nor respecting people," he said.
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"There was transformation in the entire country but there was no change here as it was a Congress ruled state. People want the works to be done in the state as being done by Prime Minister Narendra Modi at the Centre.
"There must be coordination between the state and central governments. To make it possible, people want change and want BJP government in Uttarakhand," he said.
"Now, he (Tirath) is also supporting the party's official
nominee. BJP gives weightage and respect to those people who work for it and keep positive thinking. The party can only grow then. Today BJP is ruling in so many states, there must be some qualities in it," he said.
"When 'gangajal' gets reduced, we add water to it and the added liquid also becomes 'gangajal'. Similarly, when a person joins BJP, he totally becomes a BJP man and leaves behind the Congress ideology."
Asked about the party's prospects in the February 15 assembly election in the state, he said, "We won't be requiring support from other MLAs.
"We will be 45 plus. Wherever Modiji is going, we are witnessing a positive impact. We have seen that in Jharkhand. All the star campaigners, which are 40 in number, are campaigning hard at different places in the state which will help us to win. "
"We are explaining the benefits of the move to the people. With Modiji's decision of demonetisation, the counterfiet notes, which were being used to fuel terrorism, have become useless...Naxalite activities have ceased.
"People did face the hardship by standing in queues ...Also during marriages but this is like a pain a woman goes while delivering baby. One has to bear the pain to be happy later. This demonetisation is giving birth to an honest India."
Asked about the party agenda for the state, he said, "We want to establish silicon valley in Uttarakhand so that the youths get jobs. We also want to make the state a tourist hub with world class facilities. We want to focus on various aspects of tourism like religious tourism, adventure tourism, medical tourism."