Engagement of Consultants. Central Warehousing Corporation has been accorded with the status of "Navratna". Usage of Bill tracking system for downloading TDS certificates by vendors/contractors/suppliers/consultants etc. Dial Toll Free No. 1800-313-0026 - Pest Control Services. CWC has launched, WEE@CWC, Warehousing for Everyone Everywhere, a Warehousing Aggregator software for hiring of Private Warehouses across PAN India. Vendors may use CWC's Bill Tracking System (BTS) to submit their bills/invoices directly. Click here to visit BTS. Agnipath Yojana, Golden opportunity to serve the country, become an Agniveer Click here to know more