I bought this glasses from lenskart.com in buy 1 get 1 offer 2 weeks back at 1500Rs. The lens does not have any number. It was just for my external exams. Out of the two glasses one of the glass had one lens detached after a week of continuous use. So the quality of the product is low. Lenskart is now refusing to fix the lens. Design and look of glass is good but don't buy glasses only on the basis of these. Consider quality also which is bad in this case.
Don't waste your money buying this especially from Flipkart. I'm now regretting my decision to spend 1500Rs