EXCLUSIVE: Niger or Nigeria? India probes soybean imports over suspected tax evasion, sources say ↧ ↧ EXCLUSIVE: Niger or Nigeria? India probes soybean imports over susp... Indian customs authorities are investigating a surge in soybean imports declared as originating in ​Niger, suspecting the cargoes came from Nigeria and were mislabelled to evade import tariffs, according to sources and ‌a customs letter seen by Reuters.