Satellite guidance = GPS/GLONASS(or any satellite based navigation systems) guidance, is it?
so...
and I think quite some of your mentioned DRDO projects have the GPS/GLONASS guidance as the part of compound guidance which is very common nowadays.
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obviously, the TV/IR image-guide and newer Scene Matching tech should not be forgotten which are also very common terminal phase guidance besides the Laser guide.
you mentioned SPICE2000 is right an example and this exactly explains what happened in the air strike in Feb( GPS civilian code isn't that accurate , INS has the integration drift, and somehow 'Scene Matching' didn't work in the end )