"‘In ancient times the lower portion of the river seems to have borne the name of its confluent the Saraswati or Sarsuti, which joins the main stream in Patiala territory. It then possessed the dimensions of an important channel . . . At present, however, every village through which the stream passes has diverted a portion of its waters for irrigation, no less than 10,000 acres being supplied from this source in Ambala District alone . . . During the lower portion of its course, in Sirsa District, the bed of the Ghaggar is dry from November to June, affording a cultivable surface for rich crops of rice and wheat.’"