To answer the question and match the individuals (List-I) with their respective areas (List-II), let`s examine the given options:

Option 1: A-4, B-2, C-1, D-3

Option 2: A-3, B-1, C-2, D-4

Option 3: A-3, B-2, C-1, D-4

Option 4: A-4, B-1, C-2, D-3

In order to determine the correct matching, we need to identify the areas of expertise for each person.

A. K. P. Singh:

Based on the given options, A-4 and A-3 are possible matches for K. P. Singh. To determine the correct match, we need to consider the known background of K. P. Singh. K. P. Singh refers to Kushal Pal Singh, who is an Indian real estate developer and the chairman of DLF Limited. Therefore, it is reasonable to conclude that option 4 (A-4) is the correct match for K. P. Singh.

Vikram Pandit:

Among the given options, B-2 is the only match available for Vikram Pandit. Vikram Pandit is an Indian-American banker who served as the CEO of Citigroup from 2007 to 2012. Therefore, option 1 (B-2) is the correct match for Vikram Pandit.

Roopa Farooki:

According to the given options, C-1 and C-2 are potential matches for Roopa Farooki. To determine the correct match, we need to consider the known background of Roopa Farooki. Roopa Farooki is a British-Pakistani author known for her works in fiction writing. Hence, option 3 (C-1) is the correct match for Roopa Farooki.

Kishore Biyani:

Lastly, D-3 and D-4 are possible matches for Kishore Biyani. Kishore Biyani is an Indian businessman who founded the Future Group, a company involved in retail business. Therefore, option 2 (D-4) is the correct match for Kishore Biyani.

Based on the above analysis, the correct matching is:

A-4, B-2, C-1, D-3, which corresponds to option 4.