Mosques and idgahs across the state witnessed heavy rush of devotees since early morning.
Religious scholars delivered sermons at mosques urging devotees to uphold values of love, compassion, fraternity and social harmony.
Charitable organisations distributed new clothes and gifts among inmates of 'yatim-khanas' (orphanages managed by Muslims) in various parts of the state.
Sumptuous feasts with an array of ethnic delicacies were prepared as part of the festivities in Muslim homes.
Kerala Governor Justice (retd) P Sathasivam, Chief Minister Oommen Chandy and Opposition leader V S Achuthanandan greeted people on the occasion.