Eli/Andreas,
Noto-Kannada is installed in the system. C-h H has no problems displaying the content.
libotf: 0.9.13-3 
libm17n-flt: 1.7.0-3 


Regards,
Reddy

On Wed, Aug 16, 2017 at 10:24 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> From: Andreas Schwab <schwab@linux-m68k.org>
> Cc: reddy@sikshana.org28110@debbugs.gnu.org
> Date: Wed, 16 Aug 2017 18:50:32 +0200
>
> On Aug 16 2017, Eli Zaretskii <eliz@gnu.org> wrote:
>
> > Andreas, can you please tell what versions of libotf and libm17n-flt
> > do you use?
>
> 0.9.13 and 1.6.4.

Thanks.  Reddy, please compare this with your versions, in addition to
finding out what font is installed on your system for Kannada.