In the following items, each passage consists of six sentences. The first sentence (S1) and the final sentence (S6) are given. The middle four sentences in each have been removed and jumbled up. These are labelled P, Q, R and S. You are required to find out the proper sequence of the four sentences and mark accordingly on the Answer Sheet. 

S1: In ancient India the city of Ujjain was quite famous.
P: Here lived at one time the poet Kalidas. 
Q: He was a famous learned astronomer. 
R: And here also came and worked Raja Jai Singh of Jaipur. 
S: It was always renowned as a seat of learning. 
S6: So one can see what a great love all who care for India must feel for this ancient city.