I Passed Diploma in Civil Engineering in 1993 . Now it is so necessary to do B.Tech. (Civil) by corresponding as I am doing Service in different companyies since long 17 years. I want to ask u , is it possible ?

yes. it is possible. there are so many evening/part time courses in engineering in various colleges across the country where age is not a bar. please mention your present location so that we can suggest colleges you can apply to.