This river, which is a teritory of the Gomti, rises in the Hardoi district and for a considerable portion of its course separates the districts of Lucknow and Unnao. Bending south and passing to the west of the town of Raebareli, it turns east, striking the southern border of the old catonment in the city. It passes out Raebareli at village kanhpur in pargana Salon. The total course of the river in the district is about 100 kms.in length. The banks of sai are and in many places precipitous.
TRIBUTERIES OF THE SAI KATHWARA NAIYA
This stream rises in the north east of village Johwa sarkiin tehsil Raebareli, near the southern boundary of pargana Bachhrawan.
MAHARAJ GANJ NAIYA
This stream rises in the jhil tract of pargana Kumharawn in the north of the district and takes a winding course generally in the southerly direction.
This stream, also known as only naiya, Rises on the confines of the Mohanlal ganj and Rokha jais pargana & flows south past the village of Nasirabad, after which it is named.
This steram takes it origin in a series of swamps in pargana Khiron. Like the other streams, it is dry during the hot weather, but in the rainy season it assumes rather formidable proportion. SOH It is small stream which has its origin in the lakes in the south of pargana Maurawan in the district Unnao.
In northern part of the district there is a small stream known asthe Semrauta Naiya, a teritory of the Gomti. It forms the boundary between parganasamrauta on the west and pargana Inhauna on the east.