Finally I got scanned copy of my ECA today. This was for two degrees. Following is my timelines:
Application delivered - 16-March-18
Transcripts delivered by respective universities - 05-April-18 and 10-April-18
1st AOR - 25-Apr-18
2nd AOR - 15-May-18
ECA received - 21-Jul-18 @ 11:34 AM EST