Start The Incremental Crawl In SharePoint 2013 Using PowerShell

Steps

Code

$SearchServiceApplication = Get-SPEnterpriseSearchServiceApplication -Identity "Search Service Application"
#Get the Local SharePoint sites content source
$ContentSource = $SearchServiceApplication | Get-SPEnterpriseSearchCrawlContentSource -Identity "CustomCrwalComponent"
#Check if Crawler is not already running or Idle
if($ContentSource.CrawlState -eq "Idle")
{
Write-Host "Incremental Crawl Starts..."
$ContentSource.StartIncrementalCrawl()
}
else
{
Write-Host " Crawl is already starts!"
Write-Host "ContentSourceName: ", $ContentSource.Name, " - ", $ContentSource.CrawlStatus
}