Hotel Bangalore Gate is a great hotel that is perfect for big groups. The price is also right and the rooms was spacious and well-equipped with everything you may need while travelling.
I visited Bangalore with my family last year and we stayed at Hotel Bangalore Gate - Bangalore I booked my stay through Travelguru and was quite pleased with the quick and easy booking process: https://travelguru.com/hotels/India/bangalore/hotel-bangalore-gate-00001092