Karnataka CM Siddaramaiah has been offered a Rajya Sabha seat in return for stepping down and honouring the '2.5-year' power arrangement formula, reports said. This comes after Siddaramaiah and Deputy CM DK Shivakumar (the potential CM) met LoP Rahul Gandhi and Congress President Mallikarjun Kharge in Delhi on Tuesday. Siddaramaiah, however, has not yet accepted the offer, reports added.