```mysql
mysql> update users set fname="Surendra" where id=4;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> update users set fname="Darshan" where id=3;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> select * from users;
+----+-----------+----------+----------+-------------------------------+--------------+
| id | fname     | lname    | uname    | email                         | contact      |
+----+-----------+----------+----------+-------------------------------+--------------+
|  1 | Rishikesh | Agrawani | hygull   | rishikesh0014051992@gmail.com | 917353787704 |
|  2 | Sandeep   | E        | sandeep  | sandeepeswar8@gmail.com       | 919739040038 |
|  3 | Darshan   | Sidar    | darshan  | sidardarshan@gmail.com        | 917996917565 |
|  4 | Surendra  | Prajapat | surendra | surendrakgadwal@gmail.com     | 918385894407 |
|  5 | Mukesh    | Jakhar   | mukesh   | mjakhar.kjahhar@gmail.com     | 919772254140 |
|  6 | Rishikesh | Agrawani | hygull   | rishikesh0014051992@gmail.com | 917353787704 |
+----+-----------+----------+----------+-------------------------------+--------------+
6 rows in set (0.00 sec)

mysql> delete from users where id=6;
Query OK, 1 row affected (0.00 sec)

mysql> select * from users;
+----+-----------+----------+----------+-------------------------------+--------------+
| id | fname     | lname    | uname    | email                         | contact      |
+----+-----------+----------+----------+-------------------------------+--------------+
|  1 | Rishikesh | Agrawani | hygull   | rishikesh0014051992@gmail.com | 917353787704 |
|  2 | Sandeep   | E        | sandeep  | sandeepeswar8@gmail.com       | 919739040038 |
|  3 | Darshan   | Sidar    | darshan  | sidardarshan@gmail.com        | 917996917565 |
|  4 | Surendra  | Prajapat | surendra | surendrakgadwal@gmail.com     | 918385894407 |
|  5 | Mukesh    | Jakhar   | mukesh   | mjakhar.kjahhar@gmail.com     | 919772254140 |
+----+-----------+----------+----------+-------------------------------+--------------+
5 rows in set (0.00 sec)

mysql>
```