Devotional Song. A Bhajan is any type of Indian devotional song. It has no fixed form: it may be as simple as a mantra or kirtan or as sophisticated as the dhrupad or kriti with music based on classical ragas and talas. It is normally lyrical, expressing love for the Divine. The Dhrupad style, Sufi qawwali and the kirtan are related to bhajan. Bhajans by Kabir, Mirabai, Surdas, Tulsidas and a few others are considered to be classic.