Can the Indonesian rupiah bought in China Bank be remitted to the bank?

Buying Indonesian rupiah in China Bank cannot be remitted to the bank, and it needs to be converted into RMB before remittance can be made. Indian Rupee can't be converted into our currency in our country, of course. First of all, you should go to the big branches of China Bank in Shanghai and Beijing to see if the Indian Bank can set up a branch in China. Where to try?