Tamil Nadu, Karnataka, Kerala and Maharashtra post offices followed Bihar, he said
In the 2011-12 fiscal year, Tamil Nadu had topped the nation in sale of gold coins.
Considering the boom in sale of gold coins, the Postal department has decided to sell gold coins from seven more post offices in Bihar from the next fiscal, besides the 45 existing ones, Bhuyan said.
The seven new post offices would be Forbesganj, Jogbani, Sonepur, Sheohar, Dalsingsarai, Ekma and Mashrukh.
The gold coins on sale varied from .5 gram to 50 gram.