Tuhia he tomokanga mō tēnei wāhanga - I kōwhiria a Mathew ki te Whare Āpiha o Ceylon i ngā pōtitanga whānui o Poutū-te-rangi 1960 mai i Kolonna mai i te United National Party, ā, i kōwhiria anōtia ia i ngā pōtitanga whānui o Hōngongoi 1960. I whakataetae ia i nga pooti whanui o te tau 1965 mai i Bandarawela a ka hinga ia e R. M. Appuhamy. I pootihia ia i nga pooti perehitini 8th, i tu i te 21 o Hurae 1977, e tohu ana i te pooti a Kelaniya mo te United National Party. I mōhiotia ia mō tōna tūnga pakeke ki ngā wawata tōrangapū o te Tamil. I tohua ia hei Minita mo te Ahumahi me nga Take Pūtaiao i te Hōngongoi 1977. E mōhiotia whānuitia ana ko ia tētahi o ngā minita matua i whai kawenga mō te whakaekenga o te whakaekenga anti-Tamil o Hōngongoi 1983
, i hua ai te pakarutanga o te pakanga ā-iwi 26 tau. I peia a Mathew mai i te kaunihera me te roopu United National Party e te Perehitini J. R. Jayewardene i te tau 1984 whai muri i tana whakapae i te huihuinga i karangahia e Jayewardene ki te whakatika i nga amuamu o te hunga iti o Tamil. I muri mai ka whakahoutia e te kaiwhaiwhai a Jayewardene, a Ranasinghe Premadasa, te mema o te roopu a Mathew. I mate ia i te mate pukupuku i te 17 o Oketopa 1989.