Buy gold. if your an NRI, you can bring in some kg duty free,..
http://articles.timesofindia.indiat...52_1_gold-imports-gold-merchants-gold-dealers
Only Rs.50,000/- worth of gold is allowed without import duty.
If you are an NRI, you can pay duty for 1Kgs. which comes to Rs.2.7 Lakhs.
Even after payment of Rs.2.7 Lakhs, person still earns about Rs.75,000/-
Here, jewellery shop agents gives free air tickets to India for those who are ready to carry 1Kg. gold.
