Karaoke Jingalala Saturday's offer you can get a Mic worth Rs. 1390/- and a monthly package of Rs. 50/-, just for Rs. 1/- for the first month followed by Rs. 50/- 2nd month onwards. Karaoke Jingalala Saturday's offer is only for subscribers with HD PVR and Transfer+ boxes.
Tomorrow's JSAT offer is as above (copy paste from Tata Sky Chat).
Sadly, There is No offer for SD & normal HD box subscribers.