The rise in the number of reported cases of rape and sexual abuse against children in India is a "national emergency," Nobel laureate Kailash Satyarthi said on Tuesday, with up to 100,000 such cases pending in the courts.

"Each time a daughter is raped and killed, India's soul is raped and killed," he said at the release of a report that outlines how long it takes the courts to process cases of sexual abuse against children.

Protests have erupted across India after a series of child rape cases were reported over the last 10 days. Police officers and a politician are under investigation in two of these unrelated cases.