Invitation for Bids – Retainer Periodic Maintenance and other Drainage Improvement Works from Lilongwe (Bunda Turn off) to BlantyreROADS AUTHORITY Invitation for Bids (IfB) (National Competitive Bidding) RetainerShare this:TweetLike this:Like Loading... To access this post, you must log in or purchase Gold Monthly Package or Gold Annual Package. Please note that this is an automated process and you can pay with your Mobile money or debit card