Hi I have a list of about 2300 Ko numbers. How can I get the map of pathways using these KO numbers in minimum time.
Not sure what you mean by "map" but see if this has anything usable: How To Batch Grab All Ko (Kegg Ontology) Terms Associated With Each Kegg Pathway?
Try this tool and see whether it serves your purpose, Gene Set Clustering based on Functional annotation (GeneSCF)
This can be solved by using KEGG Mapper – Reconstruct Pathway.
Just provide a gene list with your KO numbers.