The transfer forms part of the State government's decision, taken at its first Cabinet meeting on May 11, to provide 600 acres within 45 days for border fencing and related infrastructure.
According to the CBI, Kolkata Police mistakenly arrested Raj Singh, a resident of Ballia district of eastern UP, thinking he was the main shooter Rajkumar Singh.
He also said the newly formed BJP government will fulfill all promises made in the party's manifesto for the West Bengal assembly polls within a specific timeframe.
Earlier, on May 10, another accused, Raj Singh, also from Ballia, was arrested in Ayodhya by Uttar Pradesh Police based on inputs from West Bengal Police.
Rath, the personal assistant to Adhikari, was shot dead in Madhyamgram on May 6, two days after the declaration of the fiercely contested West Bengal Assembly poll results.