Modi also hit out at critics who accuse him of failing to pursue "big bang" measures to revamp the Indian economy, saying his government has undertaken maximum reforms since coming to power in May 2014.
He said that many of the changes he has put in place would have been regarded by previous administrations as difficult to implement, but now that he has done them, to his critics they no longer qualify as "big bang".
Responding to a question on Goods and Services Tax (GST) bill, Modi said he expects the legislation to pass this year.
He said the efforts to amend the law at the federal level were "over now" and it is now up to individual states to pursue changes.
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The GST bill, which has been approved by Lok Sabha, is pending in Rajya Sabha because of stiff resistance by Congress, the largest party in the House.
Modi said he would look to states to further liberalise the country's rigid labour laws, the daily reported.
"Labour reform should not just mean in the interest of industry," he said adding, "Labour reform should also be in the interest of the labourer."
"When I came to the government, I used to sit down with all the experts and ask them to define for me what is the 'big bang' for them," he said, adding "Nobody could tell me."
"I have an enormous task ahead for myself," Modi said in Hindi.
The Prime Minister said after coming to power his government had opened up more of the economy to foreign investment and made changes to curb corruption, fill gaps in rural infrastructure and make it easier to do business.
The Prime Minister also underscored the importance of public sector undertakings in the country.
The Prime Minister stressed on the defence manufacturing
sector to not only cut down on imports but also to generate employment.
"If I look at from an economic point of view, and to provide jobs to my country's young people, the defence equipment manufacturing sector can provide the maximum number of jobs to my country's youth. For that I have been working hard for many days and I also talk to other countries," Modi said.
On foreign policy, Modi said his government wants to build very close relationship with neighbours for which he is taking personal initiatives.
"The development that I desire for India, I want the same for our neighbours. And this is why I visited Lahore recently. So this (improving relationship with neighbours) is my own initiative," Modi said responding to a question on ties with neighbours, in particular Pakistan.
"Yes terrorism is a concern for the whole world. We can't compromise on terrorism, nor should we. Wherever there is terrorism in the world, we stand against it," Modi said in response to the question.
About his US visit next month and his relations with Obama, Modi said, "We have also developed a kind of friendship where we speak freely with each other."
Modi and Obama are scheduled to meet at the White House on June 7.
Modi, who has spent considerable part of his time in meeting world leaders and building relationships with them, feels that India is no longer standing in a corner and is confident of New Delhi's rising position on the global stage.
He also downplayed any friction with China, pointing to increasing trade and diplomatic exchanges between the two nations.