An Open Label, Randomized, 2 -Period, 2-Treatment, 2 Sequence, Crossover, Single-Dose Bioequivalence Study of Esomeprazole Delayed Release Capsule 40 mg [Test Formulation, Torrent Pharmaceutical Ltd., India]Versus Nexium 40 mg Delayed Release Capsule containing Esomeprazole 40 mg. [Reference Formulation, AastraZeneca LP, USA] in Healthy Human Volunteers Under Fed Conditions.