Hi Dr. Seow,
Need your help to id these butterflies from Assam, India. Thank you.

1.
1.jpg

2a.
2a.jpg

2b. Upperside of 2a
2b.jpg

3. Could this be Sauda swerga
3.jpg

4. Seems like Scobura phiditia,but the extra spot on UNH wing is confusing.
4.jpg