Changu.

I love Changu. She's perfect as a sister, perfect as a friend, and most importantly she's perfect as herself. She's one person who made life in Bangalore fun, one person you could always talk to, and what made her top on my priority list was that she was one person whom I could bitch to about ANYone. And she'd just smile. :)
You could call her up at midnight, and she'd talk to you. If you didn't have anyone to go with to the movies, all you needed to do was call up Changu. Tired as she might be, you could convince her to come. Need company for dinner? Need a break from the drab hotel food? Well, there's Changu if all you need is some good-intent, but badly cooked home-made food(Kiddin- she cooks well too). :D
She was the perfect boy's sort of girl. Had you been restraining yourself from commenting at that good-looking girl, well Changu would take herself to the task. And you'd find that she's pretty good at it too, trust me! :)
Then of course, there's her sense of humour. She has a poor one. But she appreciates humour- even the slightest tinge of it, even if you hadn't meant anything! ;) She'll laugh at even the slightest hint of a joke, however dumb it be. Even the WORST of our sleaziest jokes have fetched at least a rolling-eyed full-strech grin. And she can embarrass you laughing SO HARD at a PJ, that you'll have to tell it to others and suffer the consequences. Hence, more often than not, you find her to be the only person laughing at her own jokes. :D
Her 'strong-point' is her maths. When a person has difficulty dividing 100 by 10, you know she's gifted. Well, put in her words, things like those belong to her long list of 'the small things in life which don't matter'. A really long list.
She's smart(arguable), she's really cute and very understanding too. I've whined to her about people I hate, and talked very fondly of the same people the very next day to her. She'll listen to everything you have to say- eyes twinkling, and with a gentle smile. She'll smile as if she's panscient. Ah, that 'I know you, my boy' smile. How I miss that. How we all miss that, Changu. Well, that's another one down from among us. I wonder who's next. I wonder when. Never mind- we'll see.
Have fun Changu, and live happily forever. We all love you.