Yes you can appear for Indian administrative examination after passing B tech Electronics and communication engineering.. IAS examination is generally known as Civil service exam ..

Here I am giving you some preparation tips for Indian administrative examination after Electronics and communication engineering below ..

You must give at least 12 to 14 hours per day for studies.. start preparation start as soon as possible ..
First of all you must know complete syllabus and exam pattern of Indian administrative examination.. Then you have to give more attention for important topics of Indian administrative examination. you should Clear your basic English and mathematics Concepts.

For better preparation you have to solve the previous year question paper of Indian administrative examination or you can buy books for it
You have to make notes for important topics of Indian administrative examination and revised them regularly..