In reply to Anna's letter Maharashtra CM on Friday (today) said that "Anna Should not undermine the constitution."
Manish Sisodia, a member of Team Anna said that “Prior to this, Anna has written two letters to which he got no response. So as a last resort, Anna has written him that if the Bill is not passed, he would go on a fast-unto-death."
However, Maharashtra already has a Lokayukta and Upa-Lokayukta as per the Maharashtra Lokayukta and Upa-Lokayuktus Act, 1971.
Interestingly, in August 1999, the anti-corruption crusader had already sat on a fast-unto-death at the same place (Dnyaneshwar Samadhi) for ten days demanding action against corrupt officials by the Sena-BJP government in Maharashtra.