You parents or guardian needs to be co applicant for loan 

2) bank would insist on collateral for loan 

3) is necessary to pledge collateral in Government banks for education loans if your loan requirement is more than 7.5 lakhs. However on the other hand private lenders can give you loan  without collateral

An education loan for abroad studies without collateral is even more attractive, as it does not require any form of security when applying for an education loan. There are numerous banks in India offering an abroad education loan without collateral.

In the case of an education loan without collateral for abroad, borrowers are required to submit documentation, and fulfil relevant requirements, and eligibility criteria. 

Lenders available for a loan without collateral to study abroad can be categorised into public and private lenders. Some prominent lenders include: 

• Public banks like SBI, Bank of Baroda, etc offer applicants with a loan of upto 7.5 Lakhs without collateral. 
• Private banks like Axis Bank, ICICI Bank, HDFC, etc offer students a loan amount upto 40 lakhs without collateral. Private banks also have a repayment period of around 10-12 years, and an interest rate between 10-12%. 
• Other lenders include NBFCs (Non banking financial companies) like Incred and Auxilo, which offer students with an abroad study loan without security of upto 40 lakhs, with a rate of interest between 10-18%. 

You can obtain loan against security of any immovable property. 

Dear client,  There are international financial institutions like MPOWER Financing, Lendwise, Prodigy Finance, etc., that will provide you with education loans without collateral or cosigner. However, the norms are different when compared with public sector banks or private sector banks. The rate of interest is usually high

Collateral of suitable value is required for all education loans exceeding Rs. 7.5 Lakh.

Without collateral or a guarantor loan won't be possible.

You will not get any loan without a collateral. 

- You can get maximum 7.5 lakhs education loans without collateral security from the public banks like SBI , BOI etc.

- Hence for getting  Rs.20 lakh loan amount , you can approach the private bank or NBFC .

act as mentioned herein above 

You can contact one of the agencies who will assist you in getting loan from one of the NBFCs of your choice