Anand, to answer your question, salary and remuneration depends totally upon one's language proficiency and expertise. It is not just companies that look for translators/interpreters, but also foreign embassies with cultural attaches. For a fact French is spoken and French speaking people sought after in at least 51 countries around the world, including USA. All these countries require French professional to teach French in their schools and institutes.

French, along with English, is the official working language of
The United Nations
UNESCO
NATO
Organization for Economic Cooperation and Development (OECD)
the International Labor Bureau
The International Olympic Committee
The 31-member Council of Europe
The European Community
The Universal Postal Union
The International Red Cross
Union of International Associations (UIA)

French is the dominant working language at
the European Court of Justice
the European Tribunal of First Instance
the Press Room at the European Commission in Brussels, Belgium

To begin with, this is the scope of French! I only wish that I had had French in my school :(

French is living language whereas Sanskrit is an ancient one. French is better option.

True, Gulshan, but if one wants to study Sanskrit, there is no dearth of career options for Sanskrit too. My maternal aunt and her husband are both Sanskrit scholars and they are invited every summer to teach Sanskrit in many universities in USA and Germany.

As a matter of surprise, my aunt tells me that the number of students learning Sanskrit, not just basic, but high PhD. level, is more in Germany than in India! :) :) :)

Not just teaching, there is a huge demand of Sanskrit scholars to study and translate into common languages our amazing range of ancient Sanskrit scriptures so that knowledge is made available to everyone.