The National Company Law Appellate Tribunal (NCLAT) on Monday gave JSW Steel Ltd immunity from all criminal investigations after its takeover of Bhushan Power & Steel Ltd, whose assets were sought to be attached by the Enforcement Directorate (ED) over alleged bungling by former management. A two-member NCLAT bench headed by Justice S J Mukhopadhaya also declared attachment of assets of insolvent Bhushan Power & Steel Ltd (BPSL) by the ED as "illegal and without jurisdiction".