Explanation:

If any person married to an Indian Citizen and wants to acquire Indian Citizenship,he/she require 7 years of stay before application. If you are a foreigner with no connection to India,you need to stay in India for 12 consecutive months preceding the date of application and for 11 years out of the preceding 14 years. Therefore If the person is of Indian origin, then he / she has to be ordinary resident of India for seven years before making application towards getting citizenship by registration. Hence option 2nd is correct.