Hi Ajay_0107,
Firstly, ensure your hardware is correct.
For software, you can use BME68x sensor API https://github.com/boschsensortec/BME68x-Sensor-API, and refer example code in another link https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/Facing-communication-Issue-With-Bme688/m-p/77537#M14887
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