Indian Prime Minister Narendra Modi said his decision to deprive Kashmir under Indian administration of its special status would bring the region back to "past glory".
He added that Kashmir would play an "important role" in India's development during the independence day speech on Thursday.
He said that Article 370, the constitutional provision that granted him special status, had only encouraged corruption.
Mr. Modi did not mention the lockdown and communication breakdown imposed on Kashmir since last week's decision.
He made these remarks Thursday during an address to the iconic Red Fort in the capital Delhi.
India celebrates Independence Day one day after Pakistan, which was separated from India in 1947.
In his speech on Wednesday, Pakistani Prime Minister Imran Khan criticized India for its decision in Kashmir.
"The eye of the world is turned to Kashmir and Pakistan.What has been done during curfew by India, we will tell the international community that you are responsible. either the forum we receive, I will be the ambassador and I will bring Kashmir to every forum, "he said.
But Mr. Modi did not respond directly to Mr. Khan's remarks. Instead, he criticized at home the people who objected to the revocation of section 370, accusing them of "playing politics".
Previous governments have lacked the courage to take such a bold step because they were worried about their political future, he said.
"I do not care about my political future, for me, the future of the country comes first."
Kashmir has been stuck for more than a week now, with mobile, fixed and internet networks cut off and curfew restrictions barring people from gathering. However, officials said on Wednesday that the restrictions had been eased in the predominantly Hindu Jammu region.
Despite the security crackdown, demonstrations took place against the revocation of Article 370, including a Friday in Srinagar, in the predominantly Muslim Kashmir Valley. Thousands of people came after the noon prayer to demonstrate against the move.
Many Kashmiris believe that Modi's Hindu nationalist government aims to change the region's demographics by allowing other Indians to settle there permanently. The government denies this and has always presented its approach as aimed at facilitating economic development and security.
Although Kashmir took center stage during the Independence Day speech, the Prime Minister also made several other important announcements.
For the first time in the history of independent India, there will be a Chief of the Defense Staff who will have authority over the three Indian Armed Forces.
- Indians celebrate Kashmir's loss of autonomy
He also addressed the problem of disposable plastic, urging people to reduce their consumption and evoking other issues such as lack of water, population control and health care.