A lot of the Tamil Catholics who are relatively new converts or are uneducated bring in a lot of Hindu influence. Namely the Hindu beliefs about deities and demons, called pey. They believe that malevolent demons or benevolent deities can possess you. Some of them actually believe that the pey can inhabit inanimate objects such as rocks. Sometimes the remedy to get rid of these demons is by way of broomstick... or sequentially putting out candle fires with your tongue in order to scare the demons out. You can also get possessed by gods or goddesses in Hindu culture and since Hindus perceive Mary as a goddess, a number of women in Tamil Nadu have reported getting possessed by Mary. They speak for Mary, sometimes they take on the physicality of an old lady, despite being only teenagers or women in their 20s, and report stigmata-type bleedings. I have a creeping suspicion that a lot of these possessions are driven by mental health crises that are due to poverty and unhappy marriages though, since a lot of the apparitions seem to happen to women who are initially super unhappy with their lives. (Some of the visions have been centered around trying to get a dad to stop drinking). The bishop in the area is super frustrated by the Marian possessions and hopes that people will not support them, but sometimes the public parades of these Marian possessions have huge turnouts. Some of the people who pay attention to the Marian possessions have expressed that they believe Mary is a goddess and expressed disbelief in Christ.
Clearly, Tamil Nadu's Tamil Catholics have a lot to sort out. They live in a world where architects, event planners, and parish organizers play a larger role in evangelism than they used to in the past. Tamil churches and religious authorities are dealing with persecution and disparate belief systems. Although, I am noticing a trend similar to the one I saw while reading up on Taiwanese Catholics after China turned Communist, Taiwanese American Protestants who came to America and Korean American Protestants trying to figure out life in America, while it it is the people speaking loudly about Jesus who get the most attention, the reason people come to the churches initially is to find a sense of community, with the food that comes with these events being an added perk. Over time, as they come into contact with Catholic beliefs and questions, then their ideas start changing. Do we actually live in a world where retreat organizers, volunteer cooks and the parishioners who are hospitable to new people at church evangelize more effectively than the street preachers?