Direction: In this section, each item consists of six sentences of a passage. The first and the sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 : Indian cities are facing an enormous disparity between demand and supply of vital services and infrastructure.
S6 : This requires huge investments.
P : We have to aggressively work at enhancing both our physical and social infrastructure.
Q : Water supply, waste disposal, transport, power, housing and sanitation are some of the areas of concern.
R : Infrastructure is not just about roads, drains and water supply.
S : Housing, schools and hospitals form the fabric of our social infrastructure.