SBI is a government company but that doesnt mean its safest.I have invested 5k around 5 years back its value is not even 3k right now.
Also see last 5 years return its on top 10 of worst performing tax savings fund.
Its hay days are over around 2005-2006 when its hero fund manager left the company.
Also being a government .They invest in worst performing government assets what i have seen so they keep remain floating and tax payer money goes down the drain.