The highest topographic elevations (551 m and lowest 387
AMSL) exist in the western and northwestern portions of the
area which induces highest runoff and hence less possibility
of rainfall infiltration. The slope map of the study area has
grouped in five classes in degrees viz. 1–3 (Gentle) , 3–5
(Moderate) , 5–10 (Steep) , 10–35 (Very Steep) and >35
(Very Very Steep) (Fig. 4).