how to create Views exposed filter with fields from custom table I have one of custom table with fields named title and id. Now I want to add the title field in views exposed filter as drop down.

How to create exposed filter for this?

Could anyone explain where I can find this?
It should depend on how you are exposing the field to views, make sure views know about field  and filter handler, so as an example in your hook_views_data() your title field should be exposed in following way -

// name field
$data['exposed']['title'] = array(
    'title' =&gt; t('Title'),
    'help' =&gt; t('title for record'),
    'field' =&gt; array(
        'handler' =&gt; 'views_handler_field',
    ),
    'filter' =&gt; array(
        'handler' =&gt; 'views_handler_filter_string',
    ),
 'sort' =&gt; array(
        'handler' =&gt; 'views_handler_sort',
    ),
);