years. The belief of Sarasvati joining at the confluence of the Ganges and Yamuna originates from the Puranic scriptures and denotes the "powerful legacy" the Vedic river left after her disappearance. The belief is interpreted as "symbolic". The three rivers Sarasvati, Yamuna, Ganga are considered consorts of the Hindu Trinity (Trimurti) Brahma, Vishnu (as Krishna) and Shiva respectively. In lesser known configuration, Sarasvati is said to form the Triveni confluence with rivers Hiranya and Kapila at Somnath. There are several other Trivenis in India where two physical rivers are joined by the "unseen" Sarasvati, which adds to the sanctity of the confluence. Romila Thapar notes that "once the river had been mythologized through invoking the memory of the earlier river, its name - Sarasvati - could be applied to many rivers, which is what happened in various parts of the [Indian] subcontinent." Several present-day rivers are also named Sarasvati, after the Vedic Sarasvati: Sarsuti is the present-day name of a river originating in a submontane region (Ambala district) and joining the Ghaggar near Shatrana in PEPSU. Near Sadulgarh (Hanumangarh) the Naiwala channel, a dried out channel of the Sutlej, joins the Ghaggar. Near Suratgarh the Ghaggar is then joined by the dried up Drishadvati river. Sarasvati is the name of a river originating in the Aravalli mountain range in Rajasthan, passing through Sidhpur and Patan before submerging in the Rann of Kutch. Saraswati River, a tributary of Alaknanda River, originates near Badrinath Saraswati River in Bengal, formerly a distributary of the Hooghly River, has dried up since the 17th century. Identification theories Already since the 19th century, attempts have been made to identify the mythical Sarasvati of the Vedas with physical rivers. Many think that the Vedic Sarasvati river once flowed east of the Indus (Sindhu) river. Scientists, geologists as well as scholars have identified the Sarasvati with many present-day or now-defunct rivers. Two theories are popular in the attempts to identify the Sarasvati. Several scholars have identified the river with the present-day Ghaggar-Hakra River or dried up part of it, which is located in Northwestern India and Pakistan. A second popular theory associates the river with the Helmand river or an ancient river in the present Helmand Valley in Afghanistan. Others consider Sarasvati a mythical river, an allegory not a "thing". The identification with the Ghaggar-Hakra system took on new significance in the early 21st century, suggesting an earlier