user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Members of Legislative Assembly' regarding 'Cooch Behar Uttar'
Table Content:
| Election Year | Constituency | Name of M.L.A. | Party Affiliation |
| --- | --- | --- | --- |
| 1951 | Cooch Behar | Maziruddin Ahmed | Indian National Congress |
| - | - | Jatindra Nath Singha Sarkar | Indian National Congress |
| 1957 | - | Maziruddin Ahmed | Indian National Congress |
| - | - | Satish Chandra Roy Singha | Indian National Congress |
| 1962 | Cooch Behar North | Sunil Dasgupta | Forward Bloc |
| - | Cooch Behar South | Sunil Basunia | Forward Bloc |
| 1967 | Cooch Behar North | M.R.Tar | Indian National Congress |
| - | Cooch Behar South | Santosh Kumar Roy | Indian National Congress |
| - | Cooch Behar West | Prasenjit Barman | Indian National Congress |
| 1969 | Cooch Behar North | Bimal Kanti Basu | Forward Bloc |
| - | Cooch Behar South | Santosh Kumar Roy | Indian National Congress |
| - | Cooch Behar West | Prasenjit Barman | Indian National Congress |
| 1971 | Cooch Behar North | Sunil Kar | Indian National Congress |
| - | Cooch Behar South | Santosh Kumar Roy | Indian National Congress |
| - | Cooch Behar West | Rajani Das | Indian National Congress |
| 1972 | Cooch Behar North | Sunil Kar | Indian National Congress |
| - | Cooch Behar South | Santosh Kumar Roy | Indian National Congress |
| - | Cooch Behar West | Rajani Das | Indian National Congress |
| 1977 | Cooch Behar North | Aparajita Goppi | Forward Bloc |
| - | Cooch Behar West | Bimal Kanti Basu | Forward Bloc |
| 1982 | Cooch Behar North | Aparajita Goppi | Forward Bloc |
| - | Cooch Behar West | Bimal Kanti Basu | Forward Bloc |
| 1987 | Cooch Behar North | Aparajita Goppi | Forward Bloc |
| - | Cooch Behar West | Bimal Kanti Basu | Forward Bloc |
| 1991 | Cooch Behar North | Bimal Kanti Basu | Forward Bloc |
| - | Cooch Behar West | Soumindra Chandra Das | Forward Bloc |
| 1996 | Cooch Behar North | Mihir Goswami | Indian National Congress |
| - | Cooch Behar West | Soumindra Chandra Das | Forward Bloc |
| 2001 | Cooch Behar North | Dipak Chandra Sarkar | Forward Bloc |
| - | Cooch Behar West | Akshay Thakur | Forward Bloc |
| 2006 | Cooch Behar North | Dipak Chandra Sarkar | Communist Party of India (Marxist) |
| - | Cooch Behar West | Akshay Thakur | Forward Bloc |
| 2011 | Cooch Behar Uttar | Nagendra Nath Roy | Forward Bloc |


Question
When did Sunil Kar win the Cooch Behar North?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["Sunil Kar of Congress won the Cooch Behar North in 1972 and 1971."]