KLM/ A ir France is currently offering the cheapest flights to New Delhi from Switzerland for €289! (CHF 355)
You can fly from Basel (best price), Geneva or Zurich (€15 more).
This offer is valid only today and tomorrow so you better hurry if you want to take an advantage of this great offer as the usual price to this destination is around €500.
Departures are possible from 4th November with maximum stay of 3 months.
There are currently cheap flights for basically any date especially after new year, you may find sample below this entry.
Book directly with KLM to gain the best price.
New Delhi offers various possibilities of accomodation, if you are looking for budget guesthouse we can recommend to look in area around Main Bazaar Street, cheap accomodation is available from $5 already.