Explanation:

All statements are correct.
Relevant Laws in India and International Conventions:
Other Legislations

• The Immoral Traffic (Prevention) Act, 1956 (ITPA) is the premier legislation for prevention of trafficking for commercial sexual exploitation. 

• There are other specific legislations enacted relating to trafficking in women and children - Prohibition of Child Marriage Act, 2006, Bonded Labour System (Abolition) Act, 1976, Child Labour (Prohibition and Regulation) Act, 1986, Transplantation of Human Organs Act, 1994,

• Protection of Children from Sexual offences (POCSO) Act, 2012, is a special law to protect children from sexual abuse and exploitation.

International Convention

• United Nations Convention on Transnational Organised Crime (UNCTOC) has a Protocol to Prevent, Suppress and Punish Trafficking in Persons, especially Women and Children (India is member).

• SAARC Convention on Preventing and Combating Trafficking in Women and Children for Prostitution (India is signatory).

Hence option 3rd is correct.