i resendly purchased macbook pro m3 pro from canada. Now iam in india.My question is in canada the power is 110v but in india the power is 220v.Is there any issue for charging in 220v plug or have to purchase a stepdown transformer from 220 to 110v

Learn which power adapter and cable comes with your Mac laptop and how to check the wattage of a connected power adapter or display. Refer to this article --> Identify your Mac power adapter - Apple Support

"If your Mac uses USB-C to charge, you can charge your Mac laptop with any USB-C power adapter or display. You can safely use a power adapter or display with higher or lower wattage than the adapter included with your Mac. For the best charging experience, you should use the power adapter and cable included with your MacBook Air, MacBook Pro, or MacBook."

It should adjust automatically. Look at the voltage range embossed on the charger.

no issues (except the local power plug)

These power adapters are all rated for 110 to 240 Volts, 50 to 60 Hz.

Says so right on it (in microscopic gray type) you can also buy a local power plug "extension cord"

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