I did it on all pages. You never know when consulate might return your packet saying, "it's not self attested."
The OCI guy at Travisa said I need to make 2 more copies of my last 2 pages of the Indian passport. I asked him if he wants me to write the true copy bullshit.. He said, "It's just a formality, no need for it." Hence, I didn't on the last 2 copies.