The five judges will announce the verdict, ending decades of uncertainty on the issue.
"My appeal to the people of India is that our priority is to ensure the verdict strengthens the values of peace, equality and goodwill of our country".
Earlier, he had cautioned his council of ministers from making unnecessary statements on the issue which could stoke public sentiments.
Muslim clerics in the western states of Gujarat and Maharashtra called for peace meetings with Hindu leaders in communally sensitive areas ahead of Friday prayers.
Security is being tightened across India in the run-up to the ruling and Uttar Pradesh state police chief O P Singh told the Economic Times that more than 500 arrests had been made.
Schools and colleges will remain shut in many parts of the country including in Uttar Pradesh, Jammu and Kashmir, Karnataka, Madhya Pradesh and New Delhi. Hindu nationalist groups believe the mosque was built at the site of Ram's birthplace where a Hindu temple once stood.
Hindu hardliners want a temple built on the site, now barricaded off after a 16th-century mosque there was demolished during 1992 riots that left 2,000 people dead.
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He then allegedly spoke of using Molotov cocktails on the temple, and Holzer and the agents drove to the temple in Pueblo. One of the leaders of the American alt-right movement has been caught on tape spewing antisemitic and racial slurs in.
Security has been beefed up in Uttar Pradesh and other states.
In a related development, the Gautam Buddh Nagar administration of Noida said social media posts and WhatsApp messages that incite communal hatred or violence would draw severe punishment, including jail term, for offenders. Police also have detained 5,000 people with criminal backgrounds across the state to prevent them from creating trouble after the court verdict, Awasthi said.
Babri Masjid: On December 6, 1992, the Babri mosque was demolished by a mob of Hindu Karsevaks, who went on to construct a make-shift temple in its place.
The leader of the right-wing Bharatiya Janata Party (BJP) LK Advani leads a nationwide campaign to build a Ram temple in the place of the mosque.
An archaeological survey performed after the mosque was destroyed claimed to have found evidence of a Hindu temple beneath its foundations.
"Whatever the decision of the Supreme Court., it will not be a victory or defeat for anyone".