Explanation:

The Ghaggar-Hakra River also known as Saraswati river.The river is known as Ghaggar before the Ottu barrage and as the Hakra downstream of the barrage.
The Ghaggar is an intermittent river in India, flowing during the monsoon rains(seasonal stream). It originates in the village of Dagshai in the Sirmur District of Himachal Pradesh at an elevation of 1,927 metres (6,322 ft) above mean sea level in the lower himalyas and flows through Punjab and Haryana states into Rajasthan,just southwest of Sirsa, Haryana and by the side of Talwara Lake in Rajasthan.