Hiiiiii, I have Bought Tenda router for my home 1 year ago from the flipkart, in the price of Rs 550 at that time their was a sale . it has a speed of 150 Mbps speed, this is single antenna router and the approx range of router is 2 floor above and bellow from your house in vertical direction and has a range of 630 meter horizontal range, I am getting no problem from the last 1 year regarding the router and most important, tenda give you one year warranty regarding any manufacturing defects.
So, from the my opinion you should buy it immediately only for domestic purpose, I am attaching the image of my one year Tenda Router.