Can somebody suggest me any website from were i can get the information regarding -what i can't do in india if i become canadian citizen?

Here are some obvious ones. For starters, you can't visit without a visa. Which obviously means you can't work there without a permit. Also you can't buy property.

All of the above are possible with a PIO card, I believe, although I'm not too sure about the working part. You can't vote with a PIO card though.

If you get dual-citizenship, I think you can do pretty much anything an Indian citizen can do.

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Are you there?

PIO card holders can work in India but the validity is about 15 years. With a dual citizenship ( not offered yet ) there are certain issues to be ironed out ( like the taxation on world income, countries to include / exclude etc )

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