Members of Jet Airways JetPrivilege can earn up to 40 percent more miles when purchasing JPMiles through March 31, 2013. When you purchase 500 to 2,000 JPMiles, you’ll get 10 percent more; purchase 2,001 to 4,000 miles to get 20 percent more; purchase 4,001 to 6,000 miles for 30 percent more and when you purchase more than 6,000 miles, you’ll get 40 percent more miles. You can purchase JPMiles at Re. 1.25 per mile with a minimum of 500 miles in blocks of 100 miles. There’s no maximum amount that can be purchased but miles that are purchased under this offer are non-refundable and non-transferable. You should allow at least 24 hours for the purchased miles to show up in your account. The purchased miles will remain valid for 13 quarters from the date of purchase and will lapse on the last day of the 13th quarter (including the quarter in which they were purchased).

Bottom line: This deal has been around for awhile but is ending this month so if you have plans to purchase more miles or are nearing an award threshold and want to buy up, you should buy the miles soon before the bonus miles offer ends.