Demanding the release of other detainees, including People's Democratic Party (PDP) chief Mehbooba Mufti, he said: "All those people who were detained in state and outside should be released. I urge the government to end the communication gap.
Abdullah was among the many political leaders who had been put under house arrest after the Central government revoked Article 370 of the Constitution that accorded special status to Jammu and Kashmir.
Abdullah told media persons: "Today I don't have words. I am free today. Now, I will be able to go to Delhi and attend Parliament and speak for you all."
The Supreme Court on Friday issued a notice to the Jammu and Kashmir administration on the plea of National Conference leader Omar Abdullah's sister challenging his detention under the Jammu and Kashmir Public Safety Act, 1978.
2nd batch of 25 foreign envoys visited Kashmir. Envoys from Canada, Austria, Uzbekistan, Uganda, Slovakia, Netherlands, Namibia, Kyrgyzstan, Bulgaria, Germany, Tajikistan, France, Mexico, Denmark, Italy, Afghanistan, New Zealand, Poland Rwanda & European Union are visiting.
A three-judge Bench of Justice NV Ramana will hear the plea filed by Sara Abdullah Pilot, Omar's sister and wife of Rajasthan Deputy Chief Minister Sachin Pilot, who said the order of detention is manifestly illegal and there is no question of him being a "threat to the maintenance of public order".
The Congress leader also attacked Prime Minister Narendra Modi for criticising Omar Abdullah and Mehbooba Mufti in Parliament on Thursday and added, "You cannot govern Kashmir like this,"
Both former Jammu and Kashmir chief ministers were detained after the government abrogated Article 370 last year.
Masoodi said that everything is "meaningless" as Article 370, 35A and special status are the "primary importance" for the party.
Farooq and his son Omar Abdullah are under preventive detention following the abrogation of Article 370 on August 5.