So I was looking at Asian teams records in SENA in last 10 years (since 2011)
As it turns out Sri Lanka has the most number of series wins in SENA in this period. Records are as follows.
Sri Lanka
Series Played 12
Series Won 2
Series Drawn 0
Series Lost 10
India
Series Played 10
Series Won 1
Series Drawn 0
Series Lost 9
Pakistan
Series Played 10
Series Won 1
Series Drawn 2
Series Lost 7
So Sri Lanka has the most number of series wins but they have the most number of losses as well.
Pakistan have the least number of series losses.
As it turns out Sri Lanka has the most number of series wins in SENA in this period. Records are as follows.
Sri Lanka
Series Played 12
Series Won 2
Series Drawn 0
Series Lost 10
India
Series Played 10
Series Won 1
Series Drawn 0
Series Lost 9
Pakistan
Series Played 10
Series Won 1
Series Drawn 2
Series Lost 7
So Sri Lanka has the most number of series wins but they have the most number of losses as well.
Pakistan have the least number of series losses.

