Then tell list down how you obtained those bitcoin, along with acquisition costs.
How do I list acquisition costs for bitcoins, which are earned from signature campaign, giveaways, ad space selling, social media promotion ?
Think of it as a 2 step process. You first earn money through signature campaigns (which has an INR value) and pay tax on that.
When you sell the bitcoins later, you have capital gains or loss. The INR value of the bitcoins when you earned them becomes your acquisition cost.
The value of btc keeps changing in terms of INR or USD everyday,how to keep track of all the bitcoin [there value in INR] one gets everyday from various sources