The Chandal Dosh Puja in Ujjain is a sacred ritual aimed at seeking blessings from various gods and planets, with a particular focus on Rahu and Ketu, to alleviate the adverse effects of the dosha. This puja involves the recitation of powerful mantras, the performance of homas (fire rituals), and heartfelt prayers. Devotees earnestly seek to appease the malefic influences of Rahu and Ketu, striving for spiritual harmony and protection from negative cosmic energies.