Regarding ITC

yes sir you can take

Yes, its eligible for ITC

as a captial good

yes you are eligible even on capital good if used for business purpose

but you should capitalize GST amount and claim depreciation of GST amount

if I capitalised this amount with gst and claim depreciation on amount with gst on laptop I cannot take itc on it

but you should NOT capitalize GST amount and claim depreciation of GST amount

Yes you are eligible to take 100% ITC on computer as a capital goods.
But the condition is you should capitalize the laptop in your books of account. you should use that laptop in the course of business. and you cannot claim depreciation on tax portion. you can claim depreciation on base value only.
When you sell that laptop the you have to pay GST on it .

Agree with Mr.Prathmesh