In India, domestic LPG cylinder's (14.2 KG) price varies from states to states and it changes every months. Even for the domestic LPG cylinder, there are two categories : Subsidized and Non-Subsidized cylinders. So, it would have been useful if you could have mentioned the State, Month and the category as well so as to answer your question more accurately.
Assuming you want to know the price for Delhi and for the non subsidized domestic LPG cylinder, the following are the prices for the last 4 months:
November - Rs.899.50
October - Rs. 899.50
September - Rs. 884.50
August - Rs. 859.50