Numerous Tirthas and holy shrines have been in existence, since time immemorial:
- In the Matsyapurana, it was declared by Vayu-deva that there are 35 million of Tirthas in the sky, in the atmosphere and on the earth. They are all centered around Mother Ganga.
- As per Vamanapurana, there are 35 million of Lingas
- As per Brahmapurana, more than 100 years are required to enumerate the number of Tirthas, since they are in the realm of countless