ephraim graham has his remarkable story from new dehli, india. >> i was 21 years old when i started. >> reporter: at 60 years old, pastor r. abraham has reached a milestone in his ministry. he has just wrapped a four-day prayer meeting where world evangelists joined nearly a million believers in india to ask god for peace in their country. filling this 150-acre field is quite an accomplishment in a nation where the christian population is only a little more than 2%. and for the popular home-town pastor who didn't want to leave his job as a chemist nearly 40 years ago. >> i could even have a car -- you know, have a car in '74. that was a big deal. it was a pretty high-paying job in those days. and so you feel like your life is secure, and god spoke to me, almost like an audible voice. >> reporter: what did she say? >> god said to me, son, i have called you for a very specific purpose. i want you to resign your job. get out of your home. go and preach the gospel to your people. i said, whoa! >> reporter: though he had no idea how to preach, pastor abraham obeyed the call. just months i