S1: Union finance ministry announced a series of concessions to trade and industry last month. P: Together, these will result in a loss of revenue of Rs. 100 crore to the exchequer. Q: Earlier, these were attracting customs duty varying from zero to 100 per cent. R: The chunk of the relief of Rs. 60 crore has gone to the electronics industry. S: Raw materials and piece parts now carry customs duty of 30 per cent and 40 per cent ad valorem respectively. S6: Manufacturers feel that prices of certain components may not be brought down because of the imposition of a 30 percent duty where there was none earlier. Find the correct sequence of P, Q, R and S.