Financial Instrument - Help Required

Dear people,

i am preparing for the may attempt of final. i have gone through many books and material but didnt even find a single book where the chapter "Financial Instruements" has been explained properly.

Given the probability of the chapter regularly being tested in the examination. It would be great help if any one can provide me with any way to prepare for this chapter well or online notes. 

Thanks in advance,

Akshat.