The Uniform Civil Code (UCC) is a provision in the Indian Constitution that aims to abolish personal laws that differentiate between people from different religions, caste, or creed. It aims to provide a common set of laws for all citizens irrespective of their religious background. Here are the significant roles of UCC as mentioned by Rajnath Singh:

• The implementation of UCC will lead to the integration of citizens of various religions and communities under one law that treats everyone equally.
• It will prevent any discrimination towards women and promote gender equality as UCC provides equal rights to women in all aspects of life.
• The implementation of UCC will promote nation-building and cultural integration by removing barriers based on religious and personal laws.
• It will ensure a harmonious society with a common set of laws that is based on human values rather than religious scriptural laws.
• UCC will simplify the legal system and eliminate conflicts among various personal laws.

Thus, UCC is an essential directive principle aimed at creating a secular and egalitarian society in India.