Bangladesh, March 4 -- After overcoming the Padma main bridge imbroglio, it is still no smooth sailing for those doing the design of the rail links with the country's longest infrastructure over a river.

At the very beginning of getting down to the work on the railway track, the authorities have stumbled upon a design-related complexity, sources familiar with the matter have said.

The complexity has arisen as the four pile load tests have found soil levels different from those shown in the detailed design.

Experts and the project office now anticipate that a review of the design of the Padma Rail Link Project (PRLP) may delay the construction work and also push up the cost significantly.

Doing the pile load tests, sources said, the Chin...