Visakhapatnam: The ACB of CBI, Visakhapatnam, has registered a case against Ramakanth Sagar Muthyala, scientist-D / joint director, branch office, Bureau of Indian Standards (BIS), Vijayawada, Krishna district, V Lakshminarayana Reddy alias Babu Reddy, younger brother of Venkatareddy Sivashankar Reddy, one of the partners of Kronax engineering and pressure vessels pvt ltd, regd office at Bengaluru, YS Manohar, quality incharge of Kronax engineering and pressure vessels pvt ltd. and unknown public persons and private persons for demand of bribe and bribing of public servant.TNN