It will be similar to the union of Tamil parties in the northern and eastern provinces, the TNA.
The three parties to get together are Mano Ganeshan’s DPF, UPF and NLU.
Ganeshan said they expect to work extensively in the west, Uva, central and Sabaragamuwa, the provinces with many Tamils with Indian origin.
He said the details would be made public by next week.