Families can be clubbed using House numbers of each voters. At times, there are joint families. For these, the initials of House numbers are same, and prefixes added in the end differentiate them for different houses.
Clubbing such houses would make sense for classifying them under similar demographic factors like caste and religion. This small step reduces ground survey efforts to do same exercise and in term reduces cost and time required for segregating entire voters in groups drastically. Eg. House No. 6 and House No. 6A could belong to a joint family. A relevant exercise to check.
If you need voter list of your area, you can get it here: jantakamood.com/index.php/voter-list-in-excel/
A small use of technology here and there is immensely helpful for candidates who are desirous of contesting seriously but don’t have huge funds to match their opponents.