The correct answer is "environment friendly."

The `Eco mark` is a certification mark introduced by the Government of India to identify and label environmentally friendly products. It is awarded to products that meet specific environmental criteria throughout their lifecycle, including production, usage, and disposal.

The purpose of the Eco mark is to encourage the production and consumption of products that have a lesser impact on the environment. It signifies that the product has undergone a comprehensive evaluation and has met the required environmental standards.

The criteria for obtaining the Eco mark certification may include factors such as energy efficiency, waste reduction, use of renewable resources, non-toxicity, recyclability, and overall environmental sustainability. Products that are certified with the Eco mark are considered to be more environmentally friendly compared to other products in the market.

Hence, the `Eco mark` is given to Indian products that are environmentally friendly.