INO-ICAL is an underground experiment proposed to study the oscillation parameters of neutrinos by detecting those produced in atmospheric air showers. A prototype detector called mini-ICAL (with 11 iron layers) was commissioned to understand the engineering challenges in building a large-scale electromagnet and its ancillary systems, as well as to study the performance of RPC detectors and readout electronics developed by the INO collaboration. As part of the performance study of the RPC detectors, an attempt has been made to improve their position and time resolutions using the Time-over-Threshold (ToT) of the RPC pulses. Though the design time resolution of the ICAL detector is ∼1 ns, a substantial improvement is achieved over it with the inclusion of ToT information. The improvement of the time and position resolutions along with the performance of ICAL physics potentials will be discussed in this presentation.
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