Which is not related to Indian Chain Viper

Options

A. Larges black ring occur in three rows on dorsal surface of body
B. Subcaudals are present in two rows on dorsal surface of body
C. An arrow mark `(uarr)` is present on head
D. Head is triangular convred by small scales.

Answer

**Step-by-Step Solution:**

1. **Identify the Indian Chain Viper**: The Indian Chain Viper is a venomous snake known for its distinctive physical characteristics.

2. **Analyze the Options**: The question asks which characteristic is NOT related to the Indian Chain Viper. We need to evaluate the given options carefully.

3. **Examine Each Option**:
- **Option 1**: "Large black ring occurring through three rows on the dorsal surface of the body." This is incorrect as the Indian Chain Viper does not have this feature.
- **Option 2**: "Sub-caudal scales present in two rows on the dorsal surface of the body." This is also incorrect, as the Indian Chain Viper has a different scale arrangement.
- **Option 3**: "Arrow mark is present on the head." This is a correct feature of the Indian Chain Viper, as it has a distinctive arrow mark on its head.
- **Option 4**: "Head is triangular covered with some more scales." This is a correct description of the Indian Chain Viper's head shape and scale coverage.

4. **Determine the Incorrect Characteristic**: From the analysis, the first two options describe features that do not relate to the Indian Chain Viper, while the third and fourth options are accurate.

5. **Select the Correct Answer**: The option that is NOT related to the Indian Chain Viper is the first one: "Large black ring occurring through three rows on the dorsal surface of the body."

**Final Answer**: The characteristic that is NOT related to the Indian Chain Viper is "Large black ring occurring through three rows on dorsal surface of body."

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