Many Indians trading on the world's largest crypto exchange Binance have come under the glare of the tax authorities. Over the past few weeks, the Income Tax (I-T) department has inquired whether the 1% tax deducted at source (TDS) levied on such deals have been collected. Local investors must either provide proof of TDS deduction or submit documentary evidence on why TDS is not applicable to them, according to notices served by the tax office. Probing into the traders' source of money, the department has sought their I-T returns for the years when the funds used to purchase cryptos were earned.