It's once again a simple extension of the 7 and 35-tala concepts. Let's use the same example given above, Dhruva tala. Now we already know that it can be of five different jatis. Suppose we specify the Jaati as Chaturasra, let's see how the gati can affect it.
We know that the Chaturasra Jaati Dhruva tala has an external count of 14. However, while rendering the tala, how are we to ensure that the time-interval between each beat is uniform? This is where we introduce Gati. Now, we could have a fixed interval of 4, 3, 7, 5 or 9 counts between each beat. Let's take the example of Chaturasra Jaati dhruva tala with an interval of 4 units per beat, i.e. Chaturasra gati. The external count of 14 is multiplied by 4 (gati units) and we get a total of 56 internal counts for the tala. The same would change to 42 in Tisra Gati (14*3). In other words, each of the 35 talas can be rendered in any of the 5 different gatis. Thus the 35-talas become 175 (35*5).
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