What is law and how it is enacted, what is act, sections, sub sections, clauses, sub clauses

This series shall help you understand how the law is written. It is written in numbered paragraph and numbered sub para. Why there is need to number each paragraphs. How law is enacted in India by Central Govt. What is written in section 1. What is written in section 2. What is written in explanation. What is the difference between in definitions and explanations. A must watch for every law students.