We did the trip a few years ago, as I remember the train left from vasco about 7.00pm and you got into Bangalore about 10.00am next day We went 2nd class a.c. and it was a lot of fun. Cant help you with the cost but it's not much.
Alan

Hi i haven't done this trip but you can and must book in advance for long journey trains in India try http://www.cleartrip.com or http://www.makemytrip.com I've looked for you and the 2ac which are the best seats are £13 each you'll get your e tickets so just print them out and save
no probs, trains are not to bad at all once you book which should be asap let me know and ill give you more advice
Sharon

Hi Evotell, this link gives you the official Indian railways site. http://www.indianrail.gov.in and all the times and fares for the trains.

Hi The train number 02779 vasco to Bangalore is showing 45 seats available in 3ac at 750rps each on http://www.makemytrip.com
the departure time is 15.10 from vasco (vsg) and 15.49 at madgoan (mao) Arriving at Bangalore city jn at 07.30
sharon

sorry the station code for bangalore city jn is (sbc)

Have a look at this site

http://indiarailinfo.com/search/512/136

It is an independent site and does not belong to Indian Railways - lots of info on one page.
When the type of seat available comes up click on it and it will give you the price and the number of seats available. etc.

Thanks to everybody for all the info

Terry