Is salaries paid to Russians working in Indian Embassy in Russia?

No,

Salaries paid to Russians working in Indian Embassy in Russia will not be included in the national income as it is a part of the factor income paid abroad to non-residents. It is subtracted from domestic income to arrive at national income.

Explanation:-

Indian Embassy in Russia is within the economic territory of India. Income generated here by residents (Indian) and non-residents (Russian) will be included in domestic income.

But, the salaries paid to Russians (non-residents) will be deducted as factor income to abroad from domestic income to arrive at national income.

National Income = Domestic Income + Factor income from abroad – Factor income to abroad