Siddheshwar Mahadev Ujjain: Where Yogis Won Their Siddhis
Siddheshwar is the eleventh of Ujjain's 84 Mahadevs. According to the Skanda Purana, yogi brahmins of Devadaruvana practised hard penance for hundreds of years and still won no great siddhi. A voice with no body sent them to Mahakalavana, and visiting this linga gave them the greatest siddhi. Here is the story as the Purana tells it, what the text promises, and the popular claims that do not match it.