Complex sentence: Despite government programmes, India's literacy rate increased only "sluggishly", and a 1990 study estimated that it would take until 2060 for India to achieve universal literacy at then-current rate of progress.
Split into simpler sentences: Despite government programmes, India's literacy rate increased only "sluggishly". An old 1990 study estimated that it would take until 2060 for India to achieve universal literacy at then-current rate of progress.