Correct Answer:
Option C - Seventh Schedule of Indian Constitution contains 3 lists viz. (i) State list, (ii) Union list and (iii) Concurrent list. In Union list only Central Government can make laws, on State list, State can make laws and in concurrent list both State and Centre can make laws.
As post and telegram are under Union list so, only Union Legislature can make laws on it.
C. Seventh Schedule of Indian Constitution contains 3 lists viz. (i) State list, (ii) Union list and (iii) Concurrent list. In Union list only Central Government can make laws, on State list, State can make laws and in concurrent list both State and Centre can make laws.
As post and telegram are under Union list so, only Union Legislature can make laws on it.