"Today see the start of the 25th year that Kashmiri Pandits had to flee their homes in the valley. Words will never be enough. Nor should they be," Omar wrote on micro-blogging website Twitter.
"Time to redouble efforts to create conditions where their sense of security is restored and Pandits can consider returning," he tweeted.
Earlier, a delegation of Jammu and Kashmir Vichar Manch comprising Sanjay Ganjoo and Manoj Bhan and other Kashmiri Pandits met the BJP's prime ministerial candidate, dressed in their traditional attire and submitted a memorandum.
Modi, after meeting the delegation, said in his twitter "injustice to Kashmiri Pandits is not only an attack on their rights but an attack on our national ideal of Sarva Pantha Sambhav.
"No words will ever explain the extent of suffering Kashmiri Pandits experienced. Justice toward the community remains our firm commitment," Modi tweeted.