From what I can make out here... It looks like 27 new and 5 options for the 738NG? And might also explain the 2 recent 777 cancellations.
"Jet Airways (India) Limited announced that vide its letter dated October 05, 2007, in addition to the 20 firm orders for B737-800 aircraft, the Company had an option to acquire 10 additional B737-800 aircraft from The Boeing Company (Boeing). The Company has now decided to exercise the option. In 2005, the Company had contracted with Boeing for 13 B777-300ER aircraft. The Company has now agreed with Boeing to replace the last 2 B777-300ER aircraft with 7 B737-800 aircraft. The Company has also been given an option to acquire an additional five B737-800 aircraft. Thus, the Company will be acquiring 17 B737-800 aircraft from Boeing. n addition to the acquisition of the aforementioned aircraft, the Company has agreed to acquire 10 B737-800 aircraft which were contracted in 2005 to be acquired by Jet Lite (India) Limited from Boeing."