IPS officer Narendra Kumar was killed under a tractor reportedly owned by the illegal sand mafia in Morena district on March 8.
The police also removed the temporary bridge erected by the mafia for transporting sand.
The CPI(M) and the JDU have also demanded strict action against the mining mafia and the parties haven't ruled out political complicity.
BJP MP Narendra Singh Tomar demanded stern action against those involved in the illegal trade.
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