Explanation:

Both codes are correct.

• The use of chemical, biological, and nuclear weapons is regulated by a number of international treaties and agreements.
• Among them are the Geneva Protocol, 1925, that banned the use of chemical and biological weapons and the Biological Weapons Convention, 1972, and Chemical Weapons Convention, 1992, which put comprehensive bans on the biological and chemical weapons respectively. 
• India has signed and ratified both the 1972 and 1992 treaties. There are very few non-signatory countries to these treaties, even though several countries have been accused of non-compliance.

Hence option 3rd is correct.