DHL Express India — shipment still in the clearance event for almost a month

Address:

Bangalore Urban, Karnataka, 580063

I have ordered a Camera from Aliexpress site China
and they have shipped the package via DHL and arrived in India won the next day itself, then after some days got a call from DHL for KYC docs and details and i had submitted it on the same day and its been almost a month and still its shows clearance event going on, between that they have called for some other documents like transaction details and all, I have submitted all docs both Hard and soft copies, even to Customs officer in Bengaluru.
These DHL frauds are playing with customers didn't give any value for customer services. Its the worst courier service ever, if there is this a lot of problems then why didn't they mention before shipping? not sure if they ask for extra money for clearance because already paid enough amount for shipping,
everyone beware of these Frauds