TIMS showed Fire /Internal at car 3561. Staff(KTB) checked and confirmed no signs of smoke / fire / burning smell on exterior or interior of train. Train was escorted to terminal station. ~~~~~ 3561 - TIMS showed Fire /  Internal at car 3561 . Staff(KTB) checked and confirmed no signs of smoke / fire / burning smell on exterior or interior of train. Train was escorted to terminal station. #3561 fault code 735/731 SDR1 reinstall done. Service and clean smoke detectorPCB,Replace smoke sensor and function test ok.To monitor at M/L. Done by Saini/Asruddin. 01/06/23