Under a special drive, the Narcotics Control Bureau has seized different drugs worth nearly Rs 6 crore after intercepting seven persons, two of them wanted in a previous case, an NCB official said.

The seized drugs weigh more than 6 kg, he said. He said 2.112 kg of mephedrone, 3.9 kg of ephedrine and 45 grams of charas, having a combined market value of Rs 6 crore, were recovered under the multi-city drive on Tuesday from the seven persons who have been arrested.