Complex sentence: In Dhanwar, 16% of the population is under 6 years of age.Basically the Name "dhanwar" is the name of the block in giridih and Rajdhanwar is now its current name.
Split into simpler sentences: In Dhanwar, 16% of the population is under 6 years of age. The Name "dhanwar" is the name of the block in giridih and Rajdhanwar is now its current name.