Flipkart — Not being able to place order in my area or pincode

Address:

781023

Hello. I have been a loyal customer of flipkart since 4 years And usually keep ordering every little thing i want. Last week also i ordered 6 products from flipkart, i faced no problem with my pincode. I have been ordering things using my pincode-781023 for almost 2 years now. How all of a sudden almost 90% of the items became undeliverable to my address. its showing no seller ship. I really want to solve this problem, as i keep ordering lil things from flipkart and I am extremely disappointed with this. Please look into this matter and solve it