Morphologically It is very close to Ashok's Bronzeback (D. ashoki) which is found in the same range. Former is known for having a very short and faint black postocular streak which covers only the posterior of head while Ashok's Bronzeback bears it in longer form till the posterior of neck. In D. girii two loreals are present which is a unique character among all peninsular Indian Bronzebacks while D. ashoki bears typically a single loreal.
Average length- 70cm.
Maximum length- 105cm.
Body thin, long, slender and covered with smooth scales. Scales arranged in oblique manner with top row along vertebra moderately larger than adjacent dorsals. Color bluish-gray mixed with brown without any bronze stripe on vertebral region. Bluish dots present on greater part of dorsal and faint on posterior side. Ventrolateral stripe either of white color or absent.
Belly scales sharply folded upwards. Color yellowish-white or greenish-white which extends to first dorsal row also. Subcaudal scales with olive ting of yellow or light brown color.
Head flattened, elongated and clearly broader than neck. Top of the head patternless brown or golden-brown. Upper lip yellowish-white. A thin and not much defined preocular streak present above initial supralabials. A thick postocular streak starts from posterior of eyes and reaches to posterior of head only. Large eyes with rounded pupils. Tongue color reddish.
Very long and thin tail of brown color which ends with a pointed tip. Subcaudal scales paired in zig-zag manner.