Update: Friday, June 15th, the Indian Government has announced an update to the Indian visa application fee for Tourist and Business visas for U.S. citizens. 

From June 18th all Tourist and Business visas consular fee will be a $200 regardless of the visa validity. 

Update: Friday, June 15th, the Indian visa application website is offline while the change in fee is being updated.
No applications for Indian visas for U.S. citizens can be submitted on June 15th for processing.

Update: Friday, June 15th, the Indian consulate has now informed Travel Document Systems that any visa application created prior to June 18th that has not already been submitted for processing will be invalid, all applicants that completed a visa application on or before June 17th, that have not been submitted for processing will have to be reentered as the previous application has been voided.

Update: Friday, June 22nd, The Indian visa application fee has been changed again effective Monday, June 25th, the fee has been increased by $2.90 above the previous fee increase for all nationalities, visa types, and validities. The Indian Government has also notified TDS that application forms for Indian visas for U.S. citizens made before the 22nd of June must be canceled and remade so the new Indian visa application fee applies.

This change in fee to the stamped visa process does not affect the Indian e visa fee.

Update: July 16th, 2018. The Indian e visa fee has now also been changed the new fee for an Indian tourist e visa, Indian business e visa or Indian medical e visa is now $104.00. This change in Indian visas for U.S. citizens was announced July 16th effective immediately.