This is in regards to your query posted on the website CarDekho.com, we would like to inform you that Toyota Avanza is speculated to come in 1495cc with 4 cylinder, DHOC, 16 valve with VVTi petrol engine. The company has not yet confirmed to launch it in diesel variant. You can use the given link to view more about Toyota Avanza.
There is no official confirmation from Toyota regarding the Avanza's launch in India, so it will be early to comment on this. Also, Toyota already selling Innova MPV in good numbers, so it is needless to launch another MPV in the same segment.
Toyota hasn't made any official announcement regarding the launch of Toyota Avanza in India. But globally, it supports timing chain not belt. For more information on the same, stay tuned to Cardekho.