Iamsubho-To me ONLY ONE. However, if you feel that keeping money in savings account and in FD is a must. Also, have concerns about bank’s default, then I suggest you to open joint accounts. In that case, let us say a savings account with 3 joint account holders like A, B and C. You can keep some deposits in a manner like A, B and C; C, B and A; C, A and B; A, C and B;. In that case such deposits are treated separately.
However, a serious question-Whether your money grow by keeping in savings account? Keep only the household requirement and some emergency fund. Rest of the money must work for you. Otherwise, you work for money. I am not suggesting you to invest in mutual funds or somewhere. However, keeping money idle is not a good sign of financial life.
For further reading on DICGC, read my earliest post