How to convert untaxable past income into white?

sukruti (articled student) (60 Points)

09 July 2011  

My neighbour wants a help as to , how you can convert your untaxable past income ( kind of black money ) to proper income rather white.Can anyone suggest alternates may be like investing or so, which i could tell him :D he works as a lecturer in FIITJEE IIT coaching institute, Delhi.