Load data from CSV to MySQL - mysql

Question

I am trying to insert into mysql table from a csv file using the following command in linux:
LOAD DATA LOCAL INFILE '\/home\/abc\/mapping.csv' INTO TABLE db1.ackno_rollno_mapping FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n';
csv file is like:
166 D/O-5
208 W/O-8
230
231
236 W/O-9
245 W/O-10
8604 P/O-142
8623 W/O-730
8629 W/O-731
Table structure is:
mysql> desc db1.ackno_rollno_mapping;
+--------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------+-------------+------+-----+---------+-------+
| ackNo | varchar(45) | NO | PRI | NULL | |
| rollNo | varchar(45) | YES | | NULL | |
+--------+-------------+------+-----+---------+-------+
2 rows in set (0.00 sec)
The records are inserted, but some parts of both ackNo and rollNo are missing.
Like:
| 58 | W/O-728
| 67 | W/O-729
| 04 | P/O-142
| 23 | W/O-730
| 29 | W/O-731
I tried changing the datatype of ackNo from varchar(45) to integer, but still the same issue...
Am i missing something??
Thanks in Advance
--------EDIT---------
my csv file is like:
13,W/O-1
14,W/O-2
20,P/O-1
60,D/O-1
61,W/O-3
62,W/O-4
I tried below query also (removing the ENCLOSED BY '"')
LOAD DATA LOCAL INFILE '\/home\/abc\/ackno_rollno_mapping.csv' INTO TABLE db1.ackno_rollno_mapping FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n';
But the issue still is same. I noticed that the first digit of ackNo is removed in the table.
mysql> select * from db1.ackno_rollno_mapping;
+-------+-----------+
| ackNo | rollNo |
+-------+-----------+
| 3 | W/O-1
| 4 | W/O-2
| 0 | P/O-1
| 0 | D/O-1
| 1 | W/O-3
| 2 | W/O-4
Please advice.
Thanks