The Prime Minister does not need the Home Minister's permission. He could simply issue an executive order. And just because CK Raut has been taken to court a few times does not change anything. The state has the option to release CK Raut.
The ball is in the Prime Minister's court more than that of anyone else. After all CK Raut was arrested after his arrest was discussed and finalized in a cabinet meeting. This was an initiative at the highest level.
सिके रावतलाई बोल्दैमा राजाका पालामा जसरी थुन्न हुँदैनथ्योः प्रधानमन्त्री
राउतको रिहाइबारे पहल गर्ने आश्वासन