How to recover bricked Micromax Canvas Q385 (Spark 3) ?

I have bought a canvas spark 3 which i rooted using kingroot app. i have accidentally deleted some system files . Now the phone switches on but after i swipe to unlock I get a black screen . I think I uninstalled the bloatware Indus launcher, which was pre-installed and it is causing all this trouble. How can I recover my device?

Also, I have already factory reset the device, and it is now an unrooted device. So, would the micromax service center help me?

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