Khaleel started his calligraphic works by drawing verses from the Holy Quran as pictures that carry its meaning. Later, many of organizations in Kerala started using his works for Islamic preaching. Khaleel started getting many awards and laurels. During one of the exhibitions in Kerala, Sheikh Nadir Noori asked for Khaleel's calligraphy work, which was a drawing of the holy word La Ilaha Illallah in the shape of a lamp. Khaleel considers this as the biggest recognition and award at a young age. He handed over his work to Sheikh Nadir during the exhibition itself. Khaleel's works were exhibited in many exhibitions in India and abroad at that time itself.