Most printers now come with all the three functions that you are looking for. But what you are asking as low as possible and reputable brand would not be that easy. There are printers available for Rs3,000 but not sturdy ones
Please don't order it online if the price shows a huge difference, it many be a refurbished one. Buy it from a authorized dealer or the canon site so that after sales services and warranty all go smoothly without hitches.
If you choose a professional printer, then the cost will be high. Before actually buying please ask what is the minimum copies to be printed to prevent it from drying or getting clogged and also the actual cost of printing per page.
1.HP DeskJet 2131 All-in-One Printer this HP one costs around Rs3,000.00. this is the basic model that does all you have asked for.
2.Chose Canon PIXMA MG5700, it also prints photographs also. This link compares three printers (http://www.canon.co.in/personal/compare?productfinder=printers-inkjet-all-in-one-multi-function& languageCode=EN&product1=pixma-mg5770&category=inkjet-printers&subcategory=inkjet-multi-function&product2=pixma-mg3670&product3=pixma-ts5070). This comes with a one year warranty.
These prodcuts range from 5,000-10,000
3.Samsung ML-1261 laser printer is a good one to consider (Rs 8500-9000) but only problem is to locate a good authorized service center in some places. If you do have good access for service needs do check it out.
4.HP LaserJet Pro M126nw Multifunctional Printer. This is good if you run a small business back office from home itself. It costs around Rs14,000/- has the option of giving print commands from mobiles/tab etc.
Some sellers advise you to buy the CISS ink tanks (Continuous Ink supply system external attachment), this saves money on the company made ink cartridges. The cost of printing goes down dramatically but please check that the warranty conditions are not breached before you install.