no u cant file

ito issue a notice for file a return then u can file it 

if refund is huge then go through ca 

if refund is less no use 

for refund return should file on line

and for late return 

penality is charges 5000/-

refund is mostly adjusted with tax demand 

Don't need to wait for income tax notice. Just meet your assessing officer and submit a condonation letter. Kindly read the section 119(2)(b).

If income tax is receivable with Rs. 25,000/- then assessing officer may impose a penalty U/s 271F with Rs. 5,000/-. He may refund you only 20k...

Condonation letter U/s 119(2)(b) can be submitted for a very old Financial year. So in your case 10 months is a very little bit period. Don't warry submit a condonation letter after returning back in our favourite contry INDIA...