What is associated with: calcutta was once the capital of india this new city was made the capital in 1931?

Based on the clue 'calculating device the chinese call the suan pan', what is the answer? Based on the clue 'calculus is featured in this gilbert sullivan ope...', what is the answer? Based on the clue 'calcutta had indias first of these the transpor...', what is the answer? What is referred to by 'calcutta thimphu phnom penh'? Based on the clue 'calcuttas main river the hooghly is a branch of th...', what is the answer? Based on the clue 'calcuttas name may be derived from a temple devote...', what is the answer? What is referred to by 'caldecott medalist maurice 6'? Based on the clue 'caldillo de congrio is a chowder from this south a...', what is the answer?