Navanatha Siddheshwara Alayam is located on a black rock hillock at Armoor in the district of Nizamabad, Telangana. There is an idol of Lord shiva in the temple in the form of Siddheshwara Swamy.
History–
Navantha Siddheshwara temple is an ancient temple which is located on the hill of the temple. The hills are a massive pile of black rocks. The most interesting part of this temple is there is a deep cave in which Shiva Linga is situated. The height of the cave is too short that one cannot stand vertically and worship the Lord, instead, they have to bend their body a little and worship the idols. It is believed that Siddhas and sages meditated here and also worshipped Lord Shiva, since then this hill is known as Siddulagutta.
Siddeshwar temple is a small temple with the idol of Lord Shiva inside it, it is a historical temple but the history is still unknown, and in recent times the temple is renovated fully so the structure of the temple is comparatively new and better than before, reportedly. The most interesting part of here is Siddula Gutta is a cave inside which there is a Siva Linga.

There is just a small gate to enter the cave, so you gave to bend your body to enter this cave. People found it hilarious that they are expected to form a line here! That is the sign on the rock that says The Siva Linga is located in the depths of the cave. No one can stand fully in the temple; it is so small that human has to shed their egos and bend down (come people says the philosophy behind this).
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There are some yogis or priests in the cave who perform the poojas. They pointed people to another small and dark opening between the rocks where is another Lord Shiva idol installed in the darkness. It is a wonder how they managed to pull electrical wires inside the cave for lightning and also how the yogis sit inside the cave without even ventilation.
Well, some special poojas and festivals are happening on some special occasions related to Lord Shiva.
Temple Timings are– 6.00 am to 12.00 pm and 5.00 pm to 8.00 pm.
How to reach Navanatha Siddeshwara temple?
There are 3 ways to reach the temple, by bus, by road, and by air. It is to be noted that the road stops at a point on the hill and from there one has to walk to the temple. A 10-minute walk through picturesque scenes later hence reached the temple.
By Bus: there are Govt RTC buses available from all places in Telangana and Andhra Pradesh to reach the temple in Siddulagutta which is 26 km away from Nizamabad.
By Train: The nearest railway station is Armoor Railway Station which is 4 km away from the temple. Govt RTC buses and Auto-Rickshaws are always available from here to reach the temple.
By Flight: The nearest airport is Rajiv Gandhi International Airport which is 230 km away from the temple. Buses and taxi services are available to reach the temple.