The party that goes after money stolen in India and deposited outside gets my vote. So, here is what i want my party to do.
Step 1: Prepare a list of all countries that act as tax havens and publish it publically.
Step 2: Call the envoys/ambassadors of these nations for a meeting and give them an ultimatum. They have 3 months to produce a list of account holders and the amount stored in the banks in their countries.
Step 3: If the countries refuse, we ban these countries - economically & politically. All companies HQed in these tax havens will be refused license to operate in India. Citizens from these countries won't be allowed to travel to India and vice-versa. A complete black-out.
It is rumored that 700,00,00,00,00,000 (70 lakh crores!) - a full 162% of India's GDP of 43 lakh crores - is boarded outside India. Time to bring back the money.