Here is a copy of the letter I wrote to the hotel manager:
To the Manager of the Vivanta:
Dear Sir or Madam,
I am here in Bengaluru for two weeks of teaching for ExxonMobil, in the Tango and Tango 3 rooms.
I want to thank you and your staff for an excellent visit.
The level of service demonstrated by every single one of your staff members was the highest of any hotel in my experience. It would not have been possible for me to be taken care of any better.
I wish to particularly recommend:
Milan at reception, who greeted me warmly and made me feel welcome;
Bipin at Latitude and Virender at Terracotta, who introduced me to many delicious Indian foods;
Aravindhan and Santhosh in Tango and Tango 3, who made my teaching there an easy and pleasant experience;
and all of your chefs, who prepared the most tasty treats.
Memories of the Vivanta will be among the happiest of my trip to India.
Warm regards and much gratitude,
Robert