Toyota — toyota innova unable to repair the fault

Address:

410507

My innova number is mh 14 af 0567. My innova get off suddenly in the middle of road, traffic etc. More than 5 times i have gave it to service stations n told about the problem. They r not able to solve it till now. N its risky to take the car on long drives or in city traffic. I like my innova a lot but very sad with this complaint which service stations arnt able to solve. Please help wid a expert ifany1 avialable.
Thank you
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