Along with Sahni, summonses have also been issued to his wife Chandeshwari Devi and son Rohit, who has assisted his father "in various Maoist operations and also collected levy from locals", the release said.
The father-son duo has been named in at least 20 FIRs relating to murder, extortion and dacoity.
The ED release said Sahni has "acquired immovable properties in the name of his wife, who is working as an Anganwadi sevika. He has also made investments in real estate. The source of all his investments and deposits with banks are under investigation".
"ED has gathered that local MLAs are also paying levy to him for getting favourable condition for business as well as political benefits," the release said.
"One MLA, who runs a construction company which has been carrying out many railway projects in north Bihar, also paid levy to him. The nexus between the Maoist and politicians is also under investigation," it added.
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