Hello subhajit_sarkar,
After check your schematic,
1.Which clock source you used? According you schematic, it had external crystal support. If you used external clock source, you should check CLK_SEL first, and connect the crystal oscillator pin with an oscilloscope to check whether the crystal oscillator starts to oscillate.
2. For the reset circuit, I am not sure this reset circuit will work Reliably. The usual method is to reset power, not GND
3.In the following schematic, you need check teliability of level conversion(3.3V to 5V, 5V to 3.3V).
Some IC like 74LVC4245 could send and receive directions translating.
4. With your selftest, what does it test? Could you read BNO055 chip ID?
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