Originally Posted by
GUWonder
At $1.19 to $3.49 per minute to call an Indian or US landline or cell phone number with an account from some countries such as the US -- rates which I have noticed as part of reviewing expenses submitted for reimbursement of phone calls while international roaming is enabled -- using a non-Indian SIM may compare quite unfavorably (in cost or service reliability) to a local prepaid SIM being used for the same calls.
Note that buying an Indian SIM became dramatically harder starting last month, due to new regulations which require that the information on the paperwork be verified before a SIM is activated. The rules had just gone into effect, but verification took >1 week in our case.