Directions: The given sentence has been broken up into four different parts. The error, if any, will be in any one part of the sentence. Select the option which contains the part of the sentence which has an error (spelling, grammatical or contextual). If there is no error, choose option E.
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A
The fragment A of the sentence is erroneous. The error is in the usage of perfect participle. Here, past participle 'provided' must be used instead of 'providing'.

Note: The perfect participle indicates completed action. You form the perfect participle by putting the present participle having in front of the past participle 'provided'.

The correct sentence would therefore be, "With the intervening period having provided a wealth of data points and policy developments, including the momentous roll-out of the Goods and Services Tax, there was a clear need to update and refresh outcomes and forecasts."

Option A is hence the correct answer.
 
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E
The sentence is absolutely correct and thus has no error in it. 

Option E is hence the correct answer.
 
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C
There is an error in part C of the sentence.

We have to replace ‘after’ with ‘with’

Regard someone or something with something (Idiom):
to look upon someone or something with a certain attitude or with certain expectations. 

Ex. The child regarded the teacher with a questioning expression. 

The correct sentence would therefore be, "Water from shallow wells should be regarded with suspicion, as it may be contaminated." 

Option C is hence the correct answer.
 
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D
There is an error in part D of the sentence.

Here the verb ‘wants’ in the part D is wrongly used. It should be replaced by ‘want’ as the subject ‘customers’ is a plural noun. Hence the verb will be replaced by the plural form of the verb.

The correct sentence would be
 
“The new mobile app Yatra Mini, features only the relevant product lines-bus, train, and budget hotels to appeal to customers who have limitations of phone memory space and want to keep data usage to the minimum.”

Hence, option D is correct.

 

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C
The fragment C of the sentence is erroneous because of the usage of past form of the ‘be’ verb.

The correct sentence would therefore be, “China has justified the construction of a road in the Sikkim sector, claiming that the area is undoubtedly located on its side of the border.”

Option C is hence the correct answer.