supply of supply, installation and commissioning of gps based personnel tracking device ( ptd) including sim card with 03 years warranty with sms ,voice and data charges ,map subscription charges and all other recurring charges of gps based personal tracking device (ptd) including sim card with 03 years warranty.supply, installation and commissioning of gps based personnel tracking device ( ptd) including sim card with 03 years warranty with sms ,voice and data charges ,map subscription charges and all other recurring charges of gps based personal tracking device (ptd) including sim card with 03 years warranty.,supply, installation and commissioning of gps based personnel tracking device ( ptd) includ ing sim card with 03 years warranty for regular use of patrolmen of trd department. [ warranty period: 36 months after the date of delivery ] ] , quarterly cost per device for sms ,voice and data charges ,map subscription charges and all other recurring charges of gps based personal tracking device (ptd) including sim card with 03 years warr anty having specification as per rly board l/no. 2017/track-1/29/8 dated 16.01.2018. these charges to be paid quarterly per device from the date of commissioning. (total no. of device: 50 nos. , total time period: 3 years i.e 12 quarters, total quantity for quarterly billing: 50 * 12 = 600 nos. ) tenderers shall quote quart erly cost per device towards sms ,voice and data charges ,map subscription charges and all other recurring charges [ warranty period: 36 months after the date of delivery ] ]