Section 79(a) in Bihar Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2005
(a)when a sling is used to hoist long materials, a lifting beam is used to space the sling legs for proper balance and when a load is suspended at two or more points with slings, the eyes of the lifting legs of such slings are shackled together and such shackle or eyes of the shackled slings are placed on the hook or the eyes of such lifting legs are shackled directly to the hoisting block, ball or balance beam, as the case may be;
