Income tax

I think ITR-1 or ITR-4

ITR -1 : Income from other sources

or

You may submit your return in ITR-4  : Income from Business or Profession

ITR -1 : Income from other sources

or

You may submit your return in ITR-4  : Income from Business or Profession

yes ,  ITR 1 should be filed.

As you have mentioned Tution Income, it is Profession

Your Income 12000 x 12 = 144000

You can claim Expense for this Income and deduct it from your Tution Income

If it is above 120000 then maintain books of Accounts

You will have to file ITR 4 because Proffesison Income must file ITR 4

File itr 4s under 44ad

If you don't want to claim any expense, then ITR 4S would be appropriate to file on presumption basis u/s 44AD. in that case no need to maintain books of accounts.