April 30 rates in rupees with previous rates in bracketsChennaiBar Silver (1 kg) 18,530 (18,575)Retail (1 g) 19.85 (19.90)24 ct gold (10 g) 9,130 (9,120)22 ct gold (1 g) 846 (845)MumbaiSilver 19,145 (19,150)Standard gold 9,100 (9,115)DelhiSilver (.999) 18,850 (18,900)Standard gold 9,250 (9,250)Sovereign 7,725 (7,725)