Hi @anujtanksali ,
Follow me, download the RT1064 SDK code which contains the freertos.
Our SDK already contains a lot of freertos code:
https://mcuxpresso.nxp.com/en/builder?hw=EVK-MIMXRT1064

Must select ALL, then download the sdk code, you will find the freertos code in folder:
SDK_2_11_1_EVK-MIMXRT1064\boards\evkmimxrt1064\rtos_examples
Wish it helps you!
Best Regards,
Kerry