Deep-sea moorings in the equatorial Indian Ocean were first deployed by India in the year 2000, and currents were measured at three locations (77$^{\circ}$E, 83$^{\circ}$E, and 93$^{\circ}$E) on the equator. In this paper, we present two decades of current observations from these moorings and discuss how the moorings have evolved with time. The observations show that the 180-day (90-day) period dominates the surface and mid-depth (bottom) circulation. Though the Wyrtki Jets are strong, the near-surface currents do not show any clear semi-annual reversals. The reversals become evident only below 100 m.

$\bf{Highlights}$

$\bullet$ Twenty years of ocean current data collected at the equatorial Indian Ocean

$\bullet$ Bottom current data show strong intraseasonal variability

$\bullet$ Upward phase propagation associated with the semi-annual cycle more prominent for the mid-depth currents

$\bullet$ The semi-annual reversals not evident every year near the surface