$category = array('Your Category Id' => array('Price','Your attribute title'));

<?php $currentCategory = Mage::registry('current_category')->getId(); ?>
     <?php foreach ($_filters as $_filter): ?>
            <?php if($_filter->getItemsCount()): ?>
               <?php if(in_array($_filter->getName(),$category[$currentCategory])){
                      continue;
                 } ?>
                <dt><?php echo $this->__($_filter->getName()) ?></dt>
                <dd><?php echo $_filter->getHtml() ?></dd>
            <?php endif; ?>
     <?php endforeach; ?>

if (Mage::app()->getFrontController()->getAction()->getFullActionName() == 'catalogsearch_result_index') {
    // The current page is the search page
}

protected function _prepareLayout()
{
    $stateBlock = $this->getLayout()->createBlock($this->_stateBlockName)
        ->setLayer($this->getLayer());

    $categoryBlock = $this->getLayout()->createBlock($this->_categoryBlockName)
        ->setLayer($this->getLayer())
        ->init();

    $this->setChild('layer_state', $stateBlock);
    $this->setChild('category_filter', $categoryBlock);

    $filterableAttributes = $this->_getFilterableAttributes();
    foreach ($filterableAttributes as $attribute) {
        if (
            Mage::registry('current_category')->getId() == 19
            && in_array($attribute->getAttributeCode(), array('style'))
        ) {
            continue;
        }

        if ($attribute->getAttributeCode() == 'price') {
            $filterBlockName = $this->_priceFilterBlockName;
        } elseif ($attribute->getBackendType() == 'decimal') {
            $filterBlockName = $this->_decimalFilterBlockName;
        } else {
            $filterBlockName = $this->_attributeFilterBlockName;
        }



        $this->setChild($attribute->getAttributeCode() . '_filter',
            $this->getLayout()->createBlock($filterBlockName)
                ->setLayer($this->getLayer())
                ->setAttributeModel($attribute)
                ->init());
    }

    $this->getLayer()->apply();

    return parent::_prepareLayout();
}

public function getFilters()
{
    $filters = array();
    if ($categoryFilter = $this->_getCategoryFilter()) {
        $filters[] = $categoryFilter;
    }

    $filterableAttributes = $this->_getFilterableAttributes();
    foreach ($filterableAttributes as $attribute) {
        $filters[] = $this->getChild($attribute->getAttributeCode() . '_filter');
    }

    foreach ($filters as $filter) {
        if ($filter !== false) {
            $result[] = $filter;
        }

    }

    return $result;
}

if (
            Mage::registry('current_category')->getId() == 19
            && in_array($attribute->getAttributeCode(), array('style'))
        ) {
            continue;
        }

foreach ($filters as $filter) {
        if ($filter !== false) {
            $result[] = $filter;
        }

    }

    return $result;

<?php
/**
 * Category layered navigation
 *
 * @see Mage_Catalog_Block_Layer_View
 */
?>
<?php $pageIdentifier = Mage::app()->getFrontController()->getAction()->getFullActionName() ?>
<?php if ($pageIdentifier!='catalogsearch_result_index'): ?>
    <?php $currentCategory = Mage::registry('current_category')->getId() ?>
    <?php $filterCategory['63'] = array('Price') ?>
    <?php $filterCategory['89'] = array('Manufacturer') ?>
<?php endif; ?>
<?php if($this->canShowBlock()): ?>
<div class="block block-layered-nav">
    <div class="block-title">
         <strong><span><?php echo $this->__('Shop By') ?></span></strong>
    </div>
    <div class="block-content">
    <?php echo $this->getStateHtml() ?>
    <?php if ($this->getLayer()->getState()->getFilters()): ?>
        <div class="actions"><a href="<?php echo $this->getClearUrl() ?>"><?php echo $this->__('Clear All') ?></a></div>
    <?php endif; ?>
    <?php if($this->canShowOptions()): ?>
        <p class="block-subtitle"><?php echo $this->__('Shopping Options') ?></p>
        <dl id="narrow-by-list">
            <?php $_filters = $this->getFilters() ?>
            <?php foreach ($_filters as $_filter): ?>
            <?php if($_filter->getItemsCount()): ?>
            <?php if(in_array($_filter->getName(),$filterCategory[$currentCategory])) continue ?>
                <dt><?php echo $this->__($_filter->getName()) ?></dt>
                <dd><?php echo $_filter->getHtml() ?></dd>
            <?php endif; ?>
            <?php endforeach; ?>
        </dl>
        <script type="text/javascript">decorateDataList('narrow-by-list')                               </script>
        <?php endif; ?>
    </div>
</div>
<?php endif; ?>

public function hideAttributes($attributeCodes)
{
    $attributeCodes = array_map('trim', explode(',', $attributeCodes));
    $this->setData('hide_attributes', $attributeCodes);
}

public function getFilters()
{
    $filters = array();
    if ($categoryFilter = $this->_getCategoryFilter()) {
        $filters[] = $categoryFilter;
    }

    $filterableAttributes = $this->_getFilterableAttributes();
    # added line
    $hiddenAttributes = $this->getHideAttributes();
    foreach ($filterableAttributes as $attribute) {
        # added line
        if (!$hiddenAttributes || (is_array($hiddenAttributes) && !in_array($attribute->getAttributeCode(), $hiddenAttributes))) { # added
            $filters[] = $this->getChild($attribute->getAttributeCode() . '_filter');
        }
    }

    return $filters;
}

<reference name="catalog.leftnav">
    <action method="hideAttributes"><code>price,manufacturer</code></action>
</reference>