The low tech solution tried in India is to have a paper trail on the electronic voting machines itself.

>> ... will be fitted with a printer that will have a drop box to store the paper trail of the votes cast. This is expected to alleviate concerns — expressed earlier by the opposition led by BJP — over possible tampering of EVMs to favour a certain candidate.<<

http://www.business-standard.com/article/pti-stories/2019-ge...

http://timesofindia.indiatimes.com/india/EC-ready-with-new-a...