CCS/TMS320F28069: Watchdog ISR conflict with timer ISR

Part Number: TMS320F28069
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

I am initializing watchdog in interrupt mode but the program is not hitting its ISR as I can see in debug mode. This program also uses Timer0 ISR which is present in same PIE group (that is working properly). Can I use only one interrupt of a PIE group or any register left for initialization?  Moreover, What should I put in WAKEINT ISR to start int main() again.

#define WDINTS_STATUS       (1 << 2)
#define WDINT_SET           (1 << 1)


//WDCR: Watchdog control Register
#define WDFLAG_ENABLE       (1 << 7)
#define WDDIS_ENABLE        (0 << 6)
#define WDCHK_WRITE         0x28

#define PRESCALER_111   0X07      //0x7: (1/10Mhz)*512*64*256= 838 mSec
#define PRESCALER_110   0X06      //0x6: (1/10Mhz)*512*32*256= 419 mSec
#define PRESCALER_101   0X05      //0x5: (1/10Mhz)*512*16*256= 209 mSec

void Watchdog_config (void)
{
    EALLOW;
    SysCtrlRegs.SCSR= WDINT_SET;  //No need//    //Enable Watchdog interrupt

    SysCtrlRegs.WDCR = WDFLAG_ENABLE |WDCHK_WRITE |PRESCALER_101;              // Set the highest prescaler

    SysCtrlRegs.WDKEY = 0x0055;                                                   // Service Dog
    SysCtrlRegs.WDKEY = 0x00AA;
    PieCtrlRegs.PIEIER1.bit.INTx8 = CPT_SET_FLAG;
    EDIS;
}

__interrupt void WAKEINT_ISR(void)
{
    int ran2;
    ran2=4; //Breakpoint here
    //What to put to reset the program again
}