A lookout notice was issued by Tamil Nadu Police in a land grab case against KN Ramajayam.
The opposition party is dubbing the arrests in the land grabbing cases as a political vendetta.
Nehru is accused of forcing a doctor to sell his 13000 sq ft plot of land.
K Kathirvel claimed to have documentary evidence to prove DMK strongman KN Nehru's link to the land grab scams.
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