Phone vibrating continuously every other second . Does not boot up

I was trying to flash a custom ROM in my Lenovo A6000. I rooted the phone with KingRoot. Then using Rashr I flashed the twrp img. I went to recovery and then I made a backup using TWRP's Backup option. I rebooted the phone and again went to recovery Then tapping the Wipe option I went toAdvanced Wipe where I checked the boxes next to Data, System, Cache, Dalvik. After that I went to the Install option where I chose the ROM.zip file from the sd card. The installation failed, I tried to install again but it failed again ( I must have had a bad copy of the file ). Since I had already wiped the system I went to the Restore option, chose the backed up file to restore. The restore was successful. But when I tapped the Reboot button after a couple of seconds the device screen went off and the phone kept on vibrating continuously after short intervals. I tried pressing the POWER button for a long time--> keeps on vibrating. I tried going to recovery by pressing the hardware keys--> still keeps on vibrating. I tried connecting to the computer after taking out the battery and replacing it. NOthing seems to work. It keeps showing the same problem. Please Help...

HELP!!! Phone not booting and vibrating continuously after short intervals

I was trying to flash a custom ROM in my Lenovo A6000. I rooted the phone with KingRoot. Then using Rashr I flashed the twrp img. I went to recovery and then I made a backup using TWRP's Backup option. I rebooted the phone and again went to recovery Then tapping the Wipe option I went toAdvanced Wipe where I checked the boxes next to Data, System, Cache, Dalvik. After that I went to the Install option where I chose the ROM.zip file from the sd card. The installation failed, I tried to install again but it failed again ( I must have had a bad copy of the file ). Since I had already wiped the system I went to the Restore option, chose the backed up file to restore. The restore was successful. But when I tapped the Reboot button after a couple of seconds the device screen went off and the phone kept on vibrating continuously after short intervals. I tried pressing the POWER button for a long time--> keeps on vibrating. I tried going to recovery by pressing the hardware keys--> still keeps on vibrating. I tried connecting to the computer after taking out the battery and replacing it. NOthing seems to work. It keeps showing the same problem. Please Help...