Sri Ayyappa Swamy Devasthanam is one of the most respected and spiritually significant temples in Khammam, dedicated to Lord Ayyappa Swamy, the deity worshipped as the embodiment of dharma, devotion, and self-discipline. The temple attracts thousands of devotees throughout the year, especially during the annual Mandala-Makaravilakku season, when devotees undertake the sacred Ayyappa Deeksha and visit the temple to seek divine blessings.

The temple is known for its peaceful environment, traditional Kerala-style worship practices, and strong spiritual atmosphere. Devotees dressed in black or blue attire frequently visit the temple after observing strict religious discipline and fasting as part of the Ayyappa Deeksha. The temple serves as an important spiritual center for Ayyappa devotees in Khammam and nearby districts.

The main sanctum houses the idol of Lord Ayyappa Swamy, beautifully decorated with flowers, lamps, and sacred ornaments. The temple complex often includes shrines dedicated to Lord Ganesha, Lord Shiva, Goddess Durga, and Nagaraja Swamy, allowing devotees to worship multiple deities in one sacred location.