WITH HIS son Mihir on the run after alleged involvement in a hit-and-run death in Mumbai, and his party head Eknath Shinde promising strict action, heat is rising on Rajesh Shah, a local-level Shiv Sena leader. On Sunday, Rajesh, the deputy leader of the Shiv Sena’s Palghar unit and a former district chief of the party, was arrested by the Mumbai Police along with his driver, Rajrishi Bidawat, on charges of destroying evidence. The BMW car involved in the case belongs to Rajesh. A businessman dealing in scrap and supplier…