Looking for a few lessons of Mandarin (New Delhi)

Hello all :)

I've learned Mandarin for two years some time back and will now be going on a mission to China early March. I'd love to have a few catch-up Mandarin lessons to revive my basics. It could be a paid class or an exchange against basics of French, Russian or even Hindi :)

Many thanks for replying or sharing with someone who could help!

Olga