Mr Sharma thanked voters for the recognition they have given him for all he has done in the constitiency.
He said: "This huge majority shows the good will of the public. I'm thanking them not only for the votes but for the trust."
The MP said he will express his thanks in three ways: by speaking to people out and about in shopping centres in Southall, Hanwell and Northfields; by sending a letter out to all constituents; and by using the media to convey his gratitude to supporters.
Calling Southall a model of integration across the country, Mr Sharma said that was not enough anymore.
He added: “We need to be better, we can be better and we will be better.
“One community, one Southall, one United Kingdom for all.
“Thinking of my children, of your children, of my grandchildren, of your grandchildren. It is what drives my politics, my ideas, for what this community needs to do to take on the challenges.”
Tory candidate James Symes came out with 9,387 votes; Kavya Kaushik for the Lib Dems won 1,550 votes; Green Party’s Jaspreet Mahal scored 2,007 votes; John Poynton from UKIP got 1,769; and Jagdeesh Singh of the National Liberal Party finished with 461.
The turn-out for the constituency was 66.27%.