please forward me your marks ,i will surely help you if u cant send here you can msg me or mail -chawlajc1 @ gmail.com
rember few imp. things about costing paper-
1. improve your Q.T( speed and concept)
2. improve your theory costing and Q.T.(module and compiler)
3. few easy and imp. chapter -abc, pricing(module,compiler scanner),budget,relevant costing.learning curve.
4. BEST BOOKS- SAXENA VASHISHT ,MODULE ,SCANNER, COMPILER.
5. Try to attempt atleast 85 marks paper.
6. dnt waste time in first reading of paper,try to solve small question first, try solve as fast as you can.
7. if you can do this i am sure you will score more than 50 marks. all the best . dnt forget to inform me about your result.