@Kannan di, this is the temple i was referring to you to visit in malleshwaram.. do read and ensure you visit next time
Source- Quora
Mystery Of This Temple Made Me an Insomniac for 1 Night .
First Time When I Visited This Temple In 2005 (I was 10 years Old)
Sri Dakshinamukha Nandi Tirtha Kalyani Kshetra (Malleswaram,Bengaluru)
Photo Link- https://qph.ec.quoracdn.net/main-qimg-654212d4ed6d4a78744d3c2d16db8f23.webp
The source of the water flowing out of the Nandi's mouth is not known.
Source of the name "Dakshinamukha Nandi Tirtha Kalyani Kshetra":-
The focal point of this temple is a unique stone Nandi which is positioned facing the Southern direction - Dakshina in Kannada. Dakhshinamuka Nandi' means South facing Nandi'.
There is a continuous stream of water that flows out of the Nandi's mouth, which is considered to be holy water, referred to as Tirtha' in Kannada.
The water from the Nandi's mouth falls onto the Shivalinga and flows into a stepped tank in the middle of the temple, called a Kalyani' - Temple tank in Kannada.
Kshetra' means a place' in Kannada and is often used to refer to a place or region of historical or religious importance.
The combination of all the above elements adds up to the official name of the temple.
HISTORY OF THE TEMPLE:-
There is no documented history available for the temple. Though it is mentioned as being up to 7000 years old,
there is no historical evidence to substantiate the temple's age.
There is a mention that while excavating the temple, the Archaeological Survey of India (ASI) estimated it to be around 400 years old, based on Carbon Dating.
Since the Nandi Tirtha temple is essentially a Kalyani' or a Stepped Temple tank usually built near big temples, this structure is considered to be part of the Kadu Malleswara Shiva temple complex.
Looking at the basic architectural design of the temple and the usage of rough-hewn stone pillars for the main structure, this temple can potentially pre-date the Kadu Malleswara temple. Similar rough stone pillars have been used in ancient temples such as the Chandira Choodeshwara Shiva temple at Hosur.
THERE ARE TWO MYSTERIES IN MY MIND :-
- SOURCE OF THE WATER.
- WHY WAS THIS TEMPLE UNDER GROUND FOR ALMOST 400 YEARS.