Morphologically it can identified by checking Y shaped black markings on brown dorsal body, one large arrow shaped mark on the top of the head.
Average length- 90cm.
Maximum length- 120cm.
Laterally flattened long body. Scales smooth, long shaped and obliquely arranged. Top dosral scales along the vertebra larger than side scales. Dorsal color yellowish-brown or brown with asymmatrically arranged Y shape spots of black color, outlines with white. These spots are broadest on top and scarcly touches belly scales. Posterior body with faint markings.
Belly color white with series of blackish-brown spots on each side of ventral scales. Subcaudal scales paired in zig-zag manner.
Head triangular with rounded edge; clearly broader than neck. Upper lip color whitish and marked with black. One thick black streak runs behind eyes to posterior of lips. Top of the head with a dark color arrow shaped mark which is forked from middle. One triangular mark exist one the posterior gap of head arrow. Eyes large with vertically elliptical pupil.
Long, thin and patternless tail ends with pointed tip.