If you want to file Vat return under Maharashtra value added Tax follow the below mentioned steps: -
1. Register your TIN on mahavat.gov.in for e-services.
2. Download the e-return Form 231 / 234 as the case may be. (these forms are in uploadable format)
3. fill up the requisite form & press validate button in the form.
Form will get validated. If there are any errors, that will be reflected in error sheet.
Rectify the errors & again revalidate the form.
In case if there are no errors, "rim file" (file having extension as rim) will get generated.
4. log in the TIn on above mentione web site , you will get the option e-services
5. choose the option " upload the Return"
6.Browse for the rim file & upload the return.
7.You will get the acknowledgement instantly.
8.Save the document in PDF or take the print out.