Receiving money from foreign country

I am going to work as a freelance business consultant for clients in various countries,

And i will receive the money in my personal account which may range from INR.4000/- to 60000/-

In that case what should i do because i receive the money in my personal account ( I dont wish to open a Company now). Is this OK ? and how to file my tax returns ( means under what type of income should i bring it?)

Pl explain me in detail.

Thanks & Regards