anyone knows a good & cheap accommodation except evercrest & chateau near caleruega?

There are a lot of hotels and inns in Tagaytay. From the high-end Summit Ridge, Taal Vista, and Discovery Country Suites (average P6,000 per room night) to the smaller boutique hotels, bed & breakfast accommodations (average P3,000 per room night for 2 persons) and down to homes that have been converted into "hotels" that charge as low as P500 per room-night.

I suggest you drive around for a look-see so you can find the ideal place for you and your family.

You can also try Aroma Apartelle. I went there last week to visit relatives who booked themselves there overnight because they were, like you, attending a wedding in Caleruega.

You can find their number here to inquire about their family rooms. Also check out other hotels in this list:

http://www.tagaytay.com/where2stay.htm

Here is ANOTHER list of hotels. In this list, the Alfonso Hotel and MC Mountain Home are the closest to Evercrest and Caleruega, and also cheap at just over P2,000 per room-night.

http://www.hotelscombined.com/City/Tagaytay.htm