Does NRI need to file ITR in India if he buys an apartment

An NRI living in the USA recently purchased an under-construction apartment in Hyderabad, with the builder deducting 1% TDS. Despite having no other Indian income, they received an e-campaign notice for non-filing of ITR. The discussion explores whether filing an ITR is necessary or advisable, especially considering potential scrutiny and the need to explain the source of funds. It also seeks guidance on selecting the correct option when filing ITR-2 without any taxable income.