Help! Croma didn't deliver A.C but marked as delivered

Update: after reading some of the horrible experiences, i came to conclusion that its better to sacrifice the return/ exchange window and take chances with the service center ( if required) instead of running after Croma for refund, so asked the delivery boy to deliver the A.C.

One more thing, is it mandatory to wait for the authorised technician for installation or i can get it done from some one local? Will there be any problem to claim warranty in future if the A.C is installed by a local mechanic? 

In Mumbai deliveries typically happen from one Croma showroom or the other. It is easy just to walk into one of them and talk to them.

First raise a charge back in your CC and next step would be call / email them regarding the current status of product not being delivered with all proof like bills, payment, SMS and call recording with the delivery boy to the croma team and ask them to initiate the refund process and also tag the bank as well in this conversations, if not happening escalate to the consumer form, lodge a complaint in consumer court 

croma bohat mad**d hai.Mere bhi refund abhi tak nahi aaya its been around 2 yrs its a powerbank which they marked as delivered

So you waited for AC to be delivered till its return window is over?

First raise chargeback with evidence.

Second Consumer forum with correspondence with DA or any relevant proof and ask for POD from CROMA, how come 30-40k item delivered without OTP or signature? 

Carrier? 

This is usual practice by croma especially if you order any big application. My ac was also marked as delivered but was delivered 2 days after I received the delivery sms.

I think you don't have many options except these two-

1. Ask the delivery person to deliver the ac.

2. Email the croma team stating that you have not received the ac  till now and you want the refund of the AC since it isn't delivered till now.

Depending on their response you can escalate the matter including to the consumer forum.

Once it's marked delivered means delivered.

How can they issue refund for delivered product..

Your only hope is those conversions which you had with delivery guy and preserve all proofs. Once these proofs are submitted to them, delivery guy may say the truth

may be technical issue, reach out to croma twitter support.