Sivasoodabala pradosham

When a pradosham occurs on the same day of sivarathiri it is called sivasoodabala pradosham.Siddhars worship lord siva in temples where he had originated as a suyambu.People who follw this sivasoodabala pradosha pooja will get benefits for their previous worships in their previous births.It will also provide children with good habits and protect women.

Thanks to agasthiar archives.

Scientific details about pradosham is here

http://ajitvadakayil.blogspot.in/2014/01/nandi-bull-vahana-and-gatekeeper-of.html