Weight loss&muscle growth. Of protein?

Hello doctor, my height is 5.9. My weight 95 kgs. I'm obese. My ideal weight is 70 kgs. I wanna build muscles. What is the right way to build muscles?Should I lose all my extra kilograms before starting my weight training,muscle building exercises or is it okay to start the muscle building exercises along with the weight loss course?And my next question is,my dietitian has said I need at least 180g of protein daily. Is it possible to get that much amount of protein every day?Even if I strive too hard, I couldn't get more than hundred grams protein of everyday. South Indian cuisine doesn't support a high protein diet. My dietitian has given me a diet chart for which I have to spend four hundred rupees everyday. It is not possible for me to spend that much amount of money everyday. Could you please tell me some cost efficient way to get that much amount of protein? I always think that only rich people could get all these luxuries. Help me with this chapter. Thank you