Flipkart is indian based and we should be proud of it's delivery service and customer service and everything as it is giving head to foreign company Amazon which has a very large market in and outside of India.
Flipkart provides 1 day delivery guarantee for almost 70% items I had purchased. Thats the best part when you are looking for present or gifts at very last moments for your beloved ones.
Return process and refund, quality service, its sellers are trustworthy as well.
It has tie up with so many upcoming and new in market brands.
Bottom line. Go for it. I trust flipkart