Reads are not getting low after putting a Index

Reads are not getting low after putting a Index

The requirement is to load 50 records in paging with all 65 columns of
table "empl" with minimum IO. There are 280000+ records in table. There is
only one clustered index over the PK.
Pagination query is as following:
WITH result_set AS (
SELECT
ROW_NUMBER() OVER (ORDER BY e.[uon] DESC ) AS [row_number], e.*
FROM
empl e with (NOLOCK)
LEFT JOIN empl_add ea with (NOLOCK)
ON ea.ptid = e.ptid
WHERE
e.del = 0 AND e.pub = 1 AND e.stid = 2
AND e.md = 0
AND e.tid = 3
AND e.coid = 2
AND (e.cid = 102)
AND ea.ptgid IN (SELECT ptgid FROM empl_dep where psid = 1001
AND ib = 1))
SELECT
*
FROM
result_set
WHERE
[row_number] BETWEEN 0 AND 50
Following are the stats after running the above query from profiler:
CPU: 1500, Reads: 25576, Duration: 25704
Then I put the following index over the table empl:
CREATE NONCLUSTERED INDEX [ci_empl]
ON [dbo].[empl] ([del],[md],[pub],[tid],[coid],[sid],[ptid],[cid],[uon])
GO
After putting index CPU and Reads are still higher. I don't know what's
wrong with the index or something wrong with the query?