Depositing cash back

Not advisable. Main question would be why withdrawl when already cash in hand?

withdrew for my personal & home expenses from past 3 yrs , out of which i have saved money 

cant i deposit my own money as its given by my employer , its the left over money over the yrs which i have not spent

Out of total withdrawl of 5.40 lakhs, savings of upto 10-15% would be acceptable.