Tata Motors — bs4 truck slow pickup

Address:

BHANJANAGAR GAS INDANE DISTRIBUTOR, BHANJANAGAR, DIST: GANJAM, ODISHA 761126

We have bs4 truck of 2017 and it has problem with engine light indicator. On start it is lighting and continuing, no question of off. Because of slow pickup never touch to 5th gear. State head of odisha mr mukharjee contacted and on advice checkup was made at barmunda, bhubaneswar workshop, but after 100 km it is as it was. Then as per advise of mr mukharjee we contacted to one of your outlet gajaraj automobiles at jharsuguda, odisha, there they found approm (Dont know exactly, one sensor fitted in side of pump0, defect and changed twice. But same problem persists.
Please advise.
Truck no od32c0279.
Driver contact no [protected].