Candles are made from various waxes i.e. Paraffin, Gel, Bees, Soy, and many more waxes. Each wax has a different use. Paraffin Wax is the cheapest and could cost upto Rs.100/- per kg. You would also have to invest in very good quality molds. Molds can vary in price from Rs.10/- to Rs.1000/- depending on what quality you buy. You would also require wick, scent, steraic acid and colour. Once you have these materials together you can start to make a candle.
If you need instructions on how to make a candle please let me know as I can share my knowledge with you as I am a candle making instructor.