On top of the hill we have the Sivalayam where you can offer your prayers to Sri Raja Rajeswara is the Kshetrapalaka (Protector of the region) and Ananda Bhairava lingam.
“Listen!” Kamakhya said, “Here I am residing here with Ananda Bhairava (Shiva in his happy mood). As I am happy, I want to bless the devotees with the same happiness! So many centuries ago there were celebrations and happy rejoicing in this place of worship (Devipuram) with yagnas, Vedic chant and many offerings in the yagna. ~ Extract from Guruji’s writings about his experiences.
You can offer your abhishekas directly with your own hands here in the Sivalayam.