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PSR J1713+0747 is one of the most precisely timed pulsars in theinternational pulsar timing array experiment. This pulsar showed an abruptprofile shape change between April 16, 2021 (MJD 59320) and April 17, 2021 (MJD59321). In this paper, we report the results from multi-frequency observationsof this pulsar carried out with the upgraded Giant Metrewave Radio Telescope(uGMRT) before and after the event. We demonstrate the profile change seen inBand 5 (1260 MHz - 1460 MHz) and Band 3 (300 MHz - 500 MHz). The timinganalysis of this pulsar shows a disturbance accompanying this profile changefollowed by a recovery with a timescale of $\sim 159$ days. Our data suggestthat a model with chromatic index as a free parameter is preferred over modelswith combinations of achromaticity with DM bump or scattering bump. Wedetermine the frequency dependence to be $\sim\nu^{+1.34}$.

Evidence for profile changes in PSR J1713+0747 using the uGMRT