My wife is from Bangladesh and we got married in Ajmer five years ago. She hasn’t received citizenship yet. Can you explain how a foreign spouse can apply for Indian citizenship? Is marriage a valid path to citizenship in India?

Yes, marriage to an Indian citizen is a valid path to Indian citizenship. Your wife can apply for Indian citizenship after seven years of continuous residence in India, provided she meets other eligibility criteria like good character and knowledge of Hindi or English. You can consult a lawyer for detailed guidance on the process and required documents.