Satyanarayana Puja is a Hindu religious ceremony that is performed to worship Lord Vishnu, who is considered to be the preserver of the universe. The puja is usually performed on a full moon day or during special occasions such as weddings, housewarming ceremonies, or the beginning of a new venture.

The puja is typically performed in the evening, and the worshipper(s) usually observe a fast throughout the day. The puja begins with the invocation of Lord Ganesha, the remover of obstacles, followed by the worship of the Navagrahas or the nine planets, and the main puja to Lord Vishnu.

The puja involves the recitation of the Satyanarayana Katha, which is a story that emphasizes the importance of truthfulness, honesty, and devotion. The puja also involves the offering of flowers, fruits, sweets, and other items to the deity, and the distribution of prasad or blessed food to the devotees.

The Satyanarayana Puja is believed to bring good luck, prosperity, and happiness to the household, and is considered to be one of the most important and popular pujas in Hinduism.