Default setting is 1 year and I think you can't change it, after 1 year it will automatically re invest for 1 more year and so on. No addition in amount can be made in already created sweep in FD. If your money exceeds in savings account, it will create a new fd account number.Fair enough, Question is - to avoid multiple FD creation -
Suppose I activate first time Sweep in today and got Account no SWFD0001 with initial amount say 1 lakh for 444 days, now till it will not used completely, any subsequent addition will park only into this, and till the time 1 Rs left, any withdrawal took place from this Only !!!