The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.
P: Republic Day of India is celebrated every year on 26th of January. Q: A huge celebration event is organised annually in the national capital, New Delhi. R: It is celebrated at the Rajpath, India Gate before the President of India. S: A grand ceremonial parade of Indian army takes place at Rajpath to honour the Indian Flag.