supply of printing of form t/b912, form t/e912, form t/510 & t/369 , printing of authority for temporary single line working on double line automatic block s ystem, t/e912 (as per sample for 150 sheets in each book) , each book contains 50 form no.t/e912 and ea ch form 3 copies will be same number.(1x3x50=150 pages 1 book) as per attached sample and specificati on . [ warranty period: 30 months after the date of delivery ] ] , printing of authority to receive a train in a non signaled line (t/510)(as per sample for 150 sheets in each book) , each book contains 50 form no.t/510 and each form 3 copies will be same number.( 1x3x50=150 pages 1 book) as per p.o. attached sample and specification. [ warranty period: 30 months after the date of delivery ] ] , printing of authority to pass signal in on position or defective position t/369 (3b) modified (as per sample for 150 sheets in each book) , each book contains 50. form no. t/369 (3b) modified and each fo rm 3 copies will be same number.(1x3x50=150 pages 1 book) sample attached as per specification attach ed as per p.o. attached. [ warranty period: 30 months after the date of delivery ] ] , 26. printing of authority to proceed without line clear on automatic block signal ling territories, form no. t/b912 (as per sample for 150 sheets in each book) , each book contains 50 f orm no.t/b912 and each form 3 copies will be same number.(1x3x50=150 pages 1 book) sample attached as per annexure-b and specification attached as per annexure-a. [ warranty period: 30 months after the date of delivery ] ]