The changes in the ionospheric Total Electron Content (TEC) obtained by the Faraday rotation method at a chain of low latitude stations all in India (longitude about 75°E) are studied during a few selected geomagnetic storms mostly in winter of 1975-76. For the location Octacamund very near the dip equator in India, TEC data were available by the Group delay method also, and these correlated very well with the TEC data obtained by the Faraday rotation method.Large changes of TEC, both positive and negative, were observed at all locations, but these did not bear any clear relationships either with the specific phases (Main Phase Onset, Recovery) or with the magnitude of the geomagnetic storms. Often, large changes were observed even before the Main Onset. The fountain effect, in which a strong equatorial electrojet is associated with a large noon-time bite-out in equatorial f0F2 and a large equatorial anomaly (excess ionozation at the crests at about±30° dip angles) or, its reverse effect (a weak electrojet associated with a lack of f0F2 bite-out and a decreased equatorial anomaly), were seen very clearly in some instances during or even before a geomagnetic storm. However, in many other cases, the fountain effect was largely distorted.It is surmised that apart from electric field effects, neutral winds not only of polar origin but probably of low latitude origin are creating large dynamic upheavals in the lowlatitude ionospheric regions, often in a random fashion, not only during geomagnetic storms but even before or long time after the storm onsets. If true, the origin of such winds needs investigation.