Johnson has put injury problems behind him
The 26-year-old is one of the leading candidates to deputise for Caddick, who opted out of the tour along with Glamorgan spinner Robert Croft on Tuesday because of safety worries.
Johnson was in the squad for the last three Ashes Tests against Australia during the summer without making the final eleven and is desperate for a first opportunity.
The selectors are also likely to consider the claims of Chris Silverwood, Martin Bicknell, Alan Mullally and Alex Tudor.
But Johnson has wasted no time in letting them know that he will be happy to tour if asked to do so.
"I've always said that the one thing every cricketer wants to do is to play for his country - and I'm no different.
"I can understand people having reservations about touring India in the present climate - that is simply human nature.
"But I'm 26 and I want to play for England. If I'm offered the chance, then I will jump at touring," he said.
Johnson was chosen for the 1995 tour to South Africa but was forced to pull out because of injury.
And it took a move from Middlesex to Somerset last winter to revive his international prospects.
He claimed 62 wickets in the County Championship and also helped Somerset win the C&G Trophy at Lord's, their first success since 1983.
Johnson has experience of Indian conditions, having toured the sub-continent with the England A team seven years ago, and is confident he could be an effective member of the Test attack.
"Seam bowlers play a very different role during Test matches in India and Pakistan. My job would be to contain batsmen, but still try and nick a couple out," he said.
"I know I'm in the hunt for the tour and I know on my day that I can bowl just as well, if not better, than other bowlers."
England have now filled 11 of the 16 places, with Craig White, Ashley Giles and James Ormond set to join the party if they pass fitness checks on 7 November.
Warwickshire spinner Giles has revealed that he made up his mind to tour on Friday night when his wife, Stine, told him he should go.
"I've missed so much cricket in recent times and I'm at a point in my career when I need to be kicking on so I decided I shouldn't miss out this time," he wrote in his regular cricket 365 column.