This apostolate in this area is perplexing. The congregations are generally small, many of whom have a longstanding foot in the Novus Ordo. The coming of the "Resistance" has ironically given the three SSPX Mass centres outside of south India proper, a much better service.
The pre-Vatican II old timers have mostly passed on so it is harder to convince people who have only experienced the Novus Ordo.
The SSPX conducts "Recollections" in most of the places it has a presence, on a biannual basis. In my part of the country an average of 60 people attend out of which 20-25 would be from the local SSPX chapel, and a few who support the "Resistance". Free food, snacks and beverages are served (perhaps one of the reasons for attending). I dont know how much all this, including the rental of the hall, costs, but I do know for a fact that not a single non-SSPXer is seen at the local chapel for the TLM thereafter. Not one.
When a foreign priest comes there is canvassing to have a "good" crowd present. Some are there just to please the people who have invited them. If this is true for the SSPX it could well be true for the "Resistance".