India is not a heavily indebted country. Gross government debt of some of the developed countries as percentage of their GDP in the year 2017 is given below.
Japan 223.8
I
Italy 131.2
Singapore 114.6
France 98.5
U.K 87.0
U.S.A 82.3
Germany 64.1
India 50.1 This has since gone up
It appears that the developed countries have developed by mobilising the funds with the private sector for developmental activities.India could also develop fast by using the funds available with public by incurring debt and also by encouraging private sector to invest in developmental activities.The budget for 2020-21 shows total expenditure of Rs.30 lakh crores against revised budget of Rs.27 lakh crores which shows an increase of only about 10% . If we take into account the likely inflation of about the same percentage, there is in real terms no increase in expenditure. The welcome thing is that private sector is being involved in developmental activities.
There is scope for increasing borrowings in 2020-21 from around Rs. 8 lakh crores to at least Rs.20 lakh crores