Solution
Option 1 -> Destination Based Tax means tax is collected at the consumption point, but doesn't eliminate cascading effect.
Option 2 -> Unified Tax consolidates multiple taxes into one but doesn't prevent tax-on-tax.
Option 3 -> Input Tax Credit (ITC) allows businesses to claim credit for taxes paid on inputs, directly eliminating tax-on-tax.
Option 4 -> Unified Market creates seamless trade across states but doesn't address cascading.
Hence, Input Tax Credit (ITC) -> The cascading effect occurs when tax is levied on tax at multiple stages of production/distribution. ITC mechanism allows businesses to offset the GST paid on purchases (input tax) against the GST collected on sales (output tax). This ensures tax is paid only on the value addition at each stage, not on the entire value including previous taxes. For example, if a manufacturer pays ₹100 GST on raw materials and collects ₹300 GST on finished goods, they only remit ₹200 (300-100) to the government, thus eliminating the cascading effect -> correct