1. મારુ ભારત મહાન (Maaru Bharat Mahan): This is the most literal translation, directly translating "Mera" to "Maaru" and "Bharat" to "Bharat". It is simple and straightforward.
2. મારો ભારત મહાન (Maaro Bharat Mahan): This is another common way to write it, using "Maaro" instead of "Maaru". It's grammatically correct and slightly more formal.
3. મારું ભારત મહાન (Maarum Bharat Mahan): This is a more poetic and archaic way of saying it, using the form "Maarum" instead of "Maaru" or "Maaro". It adds a bit more depth to the expression.
Ultimately, the best way to write it depends on your context and desired tone.