Okay so I'm gonna tell you the best things to get under 500 from sarojini Nagar or lajpat Nagar. Girls love scrunchies and it's for 20 rupees. Get hairbands worth 50 rupees ( good and sturdy ones) , glass bottles worth 100 rupees, beautiful earrings worth 20,50 rupees,nail paints worth 20,50 rupees, get her new shades worth 80 and 100 rupees, if you want , you can get some chocolates and chips, make a hamper of this all and gift it to her. Trust me she's going to love it.