They have also sought intervention of External Affairs Minister Sushma Swaraj in this regard.
60-year-old Bhagvan Sarman Solanki, from Tad village in Gujarat's Gir Somnath district, was caught after his boat entered Pakistani territorial waters in April 2015.
"His condition is deteriorating every day. He is in a critical condition and requires a special medical treatment which is not available in the Pakistani jail," claimed Bharat, one of the 18 released fishermen, while speaking to PTI over phone.
Bharat and 17 others will reach here tonight.
"All fishermen languishing in Pakistani jails are much worried over deteriorating condition of Solanki," Bharat claimed.
Bharat also claimed that his brother Balunaran died in a Pakistan jail about one and half years ago.
