Offsetting 25% dividend tax deducted under DTAA

Suppose one has 25% tax deducted under DTAA if one is investing directly in US stocks using any platform. Now can one use the tax 25% tax deducted here to offset any kind of tax liability while filing the Indian ITR? Say income from other sources, interest income, income from Indian mutual funds gains- both debt and equity and Indian stocks? Everything can be offset by it right?

The India based platforms like indmoney, passa etc. in their reports add a line that if one offsets India tax like this then their return goes for manual processing to an officer. Is this true?