Constitutional Law tips by Dr. Noor-ul-Ain Fatima
For Constitutional Law: I consulted books of Mazar ul Haq + Bhatti's How states are Goverened + VD Mahajan. Write in simple but effective language.
First prepare a list of previous questions. Try to up to date your constitution by visiting wikipedia. Make headings ,quote some famous Jurists like Blackwell or Dicey and give references of some important cases like Marbury vs Madison
A good website for Pakistan’s Constitution is:
http://www.pakistanconstitution-law.com/
I think wikipedia is best for updates regarding constitutions for example there are some amendments in French constitution which are not found in other books. For Pakistan’s constitution consult Hamid khan's book, it’ll help you in understanding its history also