Flipkart — Adidas T shirt

Hello,
My complaint is about Adidas T shirt solid grey round neck Size M.
Price 513 rupees Mrp 1799.
As per Flipkart website size chart M size chest is 37 to 40 inch.
But physical size of chest as per Indian standard measurement it is 44 inch which more than I expected. Arm size as per description is short physically it is more than the size we expected. Here Flipkart is selling it with no return policy. Here I agree but the product dimensions must not be different than the product size description available on the website. It is completely a subject of cheating which comes under IPC Act 426 .
Here my expectation from Flipkart was just to replace this T shirt and give me the size XS . But now they are refusing and wasted time with fake promises.
Kindly look into this.