The government Friday raised the import tariff on gold to $461 per 10 grams from $432.
The import tariff value of silver was also raised to $803 per kg from $697 per kg.
Tariff value is the base price taken to determine customs duty, so as to prevent under-invoicing.
Gold prices in Delhi touched a peak Wednesday of Rs.34,500 per 10 grams, thus recording an increase of 9 percent in August.
Gold closed Friday at Rs.31,700 per ten grams and silver at Rs.54,000 per kg.
Gold imports to India, the world's largest consumer, in the first four months of the current financial year, rose 87 percent to 383 tonnes.
