Which among the following is not a Mark of Bureau of Indian Standards ?

Bio-Mark

The correct answer is option (2) : Bio-Mark

The Mark of Bureau of Indian Standards (BIS) that is not listed is:

2. Bio-Mark

The other options, namely Eco-Mark, Agmark, and Hallmark, are all recognized marks associated with specific standards and certifications in India:

1. Eco-Mark: This is an environmental label that signifies that the product meets certain environmental performance standards.

3. Agmark: This is a certification mark that ensures the quality and standards of agricultural products in India.

4. Hallmark: This mark is related to the purity and quality of precious metals like gold and silver in jewelry and other items.