Ok so I misunderstood one of his interviews in hindi and posted the wrong information here. PM Modi could order a ED (Directorate of Enforcement) on his own and perhaps an NIA (National Investigation Agency) investigation. But he can't order the CBI inquiry. The reason he keeps writing letters to Modi is so he can put pressure on the Maharashtra government. And they might listen since he holds so much other power and prestige.
He also said he has no opinion on who is responsible. He wants to leave that to the family. His job is only to get the CBI started for them.
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