The Sabarmati, one of the biggest rivers of
north Gujarat, originates
from the Dhebar lake in
Rajasthan
and flows towards the Gulf of Cambay. The Hathmati, the Vatrak, the Mazam,
the Meshvo, the Shedhi, the Khari and other rivulets join it.
The three "virgin" rivers of the north and the Sabarmati with
its tributaries are the daughters of the Aravalli ranges, while the Mahi
and the Narmada with their families originate from
Madhya
Pradesh , the former in the big lake near Amzara and the latter in
the Amarkantak. The Mahi is joined by the Bhadar, the Anas, the Panam and
the Meshri. The Narmada one of the biggest and holiest river along with
the only tributary, the Karjan, meets the sea, about 16km from Broach. 
Sabarmati River Basin is situated in the mid-southern part of
Rajasthan
, between latitudes 23°25' and 24°55' and longitudes 73°00'
and 73°48'. To its east lie the Banas and Mahi Basins, to its north
the Luni Basin and to its west the West Banas Basin. Its southern boundary
is the border with Gujarat State.
The total catchment area of the Basin is 4,164 km2 according to the
1:250,000 scale topographical maps published by the Survey of India.
Sabarmati River Basin extends over parts of
Udaipur
, Sirohi, Pali and Dungarpur Districts. Geographically, the western part
of the Basin is marked by hilly terrain belonging to the Aravalli chain.
East of the hills lies a narrow alluvial plain with a gentle eastward
slope.