You can easily awail foreign scholarship for further studies after bachelor in Engineering fields.
Scholarships in japanese universities
NUST Islamabad, NED & UET Lahore: any campuses Bachelors degree graduates: Japan JICA fully Scholarships for Masters/MPhil and one year research exchange are open now in any fields of Sciences & Engineering (2nd Batch)
Check the Japanese universities websites included in this program and apply after looking at their deadlines for this innovative asia scholarships accordingly
You can listen to this lecture as well by a Pakistani senior. He will also help you regarding questions about this scholarship