Eduardo,
It might be difficult to find this information. However there are a few possible proxy sources, the parliamentary website of the central government has a day to day log of proceedings, and many state assembly websites also have a similar website. While it’s not possible to find individual votes, you can find two things:
1. Opposition opinion : This will tell you each parties position regarding the bill.
2. Members present on the day of the vote : The anti- defection bill makes it impossible for people to vote outside party whip. So if a whip has been issued (which in most cases will be true), you can be 100% sure that all members present voted along party lines.
You can cross reference these two things and get the data you need.
Hope this helps,
Hello,