Tamil Nadu Electricity Board [TNEB] — change lm61 to la1a

I am karthik from avanthankottai, arathangi taluk, pudukkottai dt. Our connection details are

Name c. Poominathan
Region 06-trichy
Circle 446-pudukkottai
Section 136- (O&m)/avanathankottai
Distribution 001-avanathankottai
Number 1295.

We completed home construction after that we communicate with my village eb office for changing lm61 to la1a.
Almost 1year 5months over, still they not changing.
Please i requesting you please change plan.

Thanking you