UPSC CDS English Ordering of Sentences Part 1 Questions

In the given passage, (S1) is the introduction, which discusses the process of the emergence of the Indian Constitution. (R) follows the introduction as it elaborately narrates about the process. (Q) is the contradiction of (R) and it follows (R). (S) follows (Q) as it is the expansion of (Q). (P) is also next part of (S). (S6) is the final sentence of the passage.