Indian railway has advanced GPS tracking system through which they track the current location of train. MakeMyTrip had collaborated with them and was showing live status of train on WhatsApp. But, they didn't make it long, i think after few months they have discontinued the service. From now onward, if you want to know where a particular is then simply check the current train running status online at https://www.indiantrain.in/live-train-running-status.