March 31 rates in rupees with previous rates in bracketsChennaiBar Silver (1 kg) 17,610 (17,200)Retail (1 g) 18.85 (18.40)24 ct gold (10 g) 8,480 (8,380)22 ct gold (1 g) 785 (776)MumbaiSilver 17,405 (15,755)Standard gold 8,450 (8,200)DelhiSilver (.999) 16,700 (16,500)Standard gold 8,500 (8,460)Sovereign 6,700 (6,650)