The tunnel joke

.......... Everybody knows the famous under creek/sea tunnel joining England and France. Before it's construction, the tenders were invited from various construction companies by giving newspaper ads throughout the world. Banta Singh came across one such ad and he decided to fill the tender. On the day of opening the tenders everybody was surprised to find Banta Singh's tender at it's very lowest. Other tenders were quoting billions of pounds, Banta Sing had offered to do the job for just 10000 pounds. Now , as per the rule Banta was to get the contract. Before giving works order to Banta Singh, the officer asked BantaSingh as to how he could afford to work at such a low budget. Banta Singh said,"look, back home, there is my brother, Santa Singh.I will call him here. We will take two shovels. I will start diging from English bank and Santa Singh will start digging from French bank. The moment we meet, you get a tunnel." The dumbstruck officer asked with courage," and if you don't meet?" Banta Singh replied," then you will get two tunnels in same cost."