Although the best period of withdrawal in Kisan Vikas Patra Yojana is maturity because on this period you get 2 times the amount of your investment back, but if you want to withdraw money before maturity, then you can withdraw it in two and a half years. Do it later because after two and a half years you get 6.9% interest rate on withdrawal and no penalty is also imposed. If you withdraw on 1 year, you will not get the interest rate and penalty will be charged, similarly if you withdraw before two and a half years and after 1 year, you will not be given interest rate.