Try this:
Suppose you have the following tables (called 'users')
id|user|fname|lname|email|etc..
-------------------------
1|niroj|niroj|nirojdey@example.com|blah....
DB::table('users')->insert(
array('user' => 'niroj',
'fname' => 'niroj',
'lname' => 'dey',
'email' => 'niroj dey@example.com')
);
The insert() accepts multiple array (which in turns can be mapped to individual columns in your table).