"Even during the UPA government, they had revoked their approval given to cultivate Bt brinjal, following strong protests against it. So, the BJP government should immediately intervene in this issue and revoke their approval given for field trials of GM crops," Karunanidhi said in a statement.
The DMK patriarch recalled the scientists' advice against the GM crops that their consumption would result in various diseases.
The Centre has reportedly approved field trials for 15 genetically modified (GM) crops, including rice, mustard and bengal gram last week.