On December 24, 1983, Brother Sadhu had a supernatural visitation from the Lord Jesus Christ. The Lord Jesus Christ appeared to him in the Spirit and began speaking to him about the legendary Sadhu Sundar Singh and the Sadhu's ministry in Tibet. The Lord Jesus spoke to him for about 20 minutes. The Lord Jesus then asked Sundar Selvaraj, "Will you continue that ministry?" Without any hesitation, Selvaraj answered "Yes Lord!" Smiling, the Lord said, "Do not reply hastily! This is a very difficult ministry with lots of suffering. You may have to suffer loneliness, isolation, hunger, pain and persecutions. Now tell Me. Will you accept this ministry?" Humbly kneeling before the Lord Jesus, Selvaraj answered, "Yes Lord. I will continue Sadhu Sundar Singh's ministry." Pleased with that answer, the Lord Jesus came towards Selvaraj and placed a mantle. Laying on his hands upon him the Lord Jesus then said, "I am ordaining you as an apostle to Tibet. Go and evangelize Tibet and her people. From today you shall be called Sadhu Sundar Selvaraj."

After two years of praying and waiting on God, the Lord Jesus revealed a strategy for the systematic evangelization of the Tibetans. Since 1986 Brother Sadhu has been going regularly to Tibet every year to bring God's healing love to the Tibetans.