Rahul Mehta Gandhinagar LsCandidate

I have imporant question about GM mustard. Opponents say that GM mustard will damage farmers. In that case, farmers wont use it. So then why oppose it?
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Also, pls dont make it Swadeshi issue. Because GM mustard is developed by Indian scientists at Delhi Univ and other Indian bodies
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So lets confine to enviornment / health issues only.
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Which genes are added in GM mustard?
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What exactly are damage by GM mustard?