"TMC" stands for Thousand Million Cubic Feet, which is a unit of volume typically used to measure large quantities of water. "Cusecs" is a common abbreviation for cubic feet per second, which is a unit of flow rate used to measure the rate at which water flows.
To convert Thousand Million Cubic Feet (TMC) to cubic feet per second (cusecs), you need to know the time over which the flow is occurring. The conversion formula is:
Flow Rate (cusecs) = Volume (TMC) / Time (in seconds)
Without knowing the time period over which the TMC is measured, it's not possible to provide a direct conversion. If you have the time duration, you can use the above formula to calculate the flow rate in cusecs.