Suggestion needed to get maximum discount in flipkart BSD sale for HDFC users

Hello dimers,

I am having both HDFC CC and DC.

I am also slightly aware of cashback in payzapp and HDFC smart buy.

Could you please suggest a way to get maximum benefit in flipkart’s upcoming sale?

Btw, I am planning to buy a laptop

As of now, My idea is as follows
1. Use zingoy
2. Burn 20 coins and get 1000₹ off(applicable on select laptops for plus users)
3. Use CC for rewards as well

Is there any better plan to get maximum benefit? Please share